Biology

04:36 Popular
How Do Vaccines Work? - Kelwalin Dhanasarnsombut

8 years ago / 815 views

View full lesson: http://ed.ted.com/lessons/how-do-vaccines-work-kelwalin-dhanasarnsombut The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to
04:07 Popular
Could A Blind Eye Regenerate? - David Davila

8 years ago / 1,314 views

View full lesson here: http://ed.ted.com/lessons/could-a-blind-eye-regenerate-david-davila We tend to think of blindness as something you're born with, but with certain genetic diseases, it can actually develop when you’re a kid, or even when you’re an ad
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09:15 Popular
What is Chemical Evolution?

8 years ago / 959 views

Have you ever wondered how life first got started on Earth? So do scientists! Though the question has not yet been fully answered, a careful study of Chemical Evolution is beginning to shed light on this mystery. In this film you will learn what Chemical
05:42 Popular
How We Think Complex Cells Evolved - Adam Jacobson

8 years ago / 842 views

View full lesson: http://ed.ted.com/lessons/how-we-think-complex-cells-evolved-adam-jacobson Imagine you swallowed a small bird and suddenly gained the ability to fly … or you ate a cobra and were able to spit poisonous venom! Well, throughout the history
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03:21 Popular
What Does The Pancreas Do? - Emma Bryce

8 years ago / 1,674 views

View full lesson: http://ed.ted.com/lessons/what-does-the-pancreas-do-emma-bryce Beneath your ribs, you’ll find, among other things, the pancreas -- an organ that works a lot like a personal health coach. Emma Bryce explains how this organ controls your s
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Learning From Smallpox: How To Eradicate A Disease - Julie Garon And Walter A. Orenstein

8 years ago / 761 views

View full lesson: http://ed.ted.com/lessons/learning-from-smallpox-how-to-eradicate-a-disease-julie-garon-and-walter-a-orenstein For most of human history, we have sought to treat and cure diseases. But only in recent decades did it become possible to ens
05:14 Popular
How Brain Parasites Change Their Host's Behavior - Jaap De Roode

8 years ago / 783 views

View full lesson: http://ed.ted.com/lessons/how-parasites-change-their-host-s-behavior-jaap-de-roode The biggest challenge in a parasite’s life is to move from one host to another. Intriguingly, many parasites have evolved the ability to manipulate the be
04:31 Popular
Why It’s So Hard To Cure HIV/AIDS - Janet Iwasa

8 years ago / 1,031 views

View full lesson: http://ed.ted.com/lessons/why-it-s-so-hard-to-cure-hiv-aids-janet-iwasa In 2008, something incredible happened: a man was cured of HIV. In over 70 million HIV cases, this was a first, and, so far, a last, and we don’t yet understand exac
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04:30 Popular
How Do Geckos Defy Gravity? - Eleanor Nelsen

8 years ago / 792 views

View full lesson: http://ed.ted.com/lessons/how-do-geckos-defy-gravity-eleanor-nelsen Geckos aren’t covered in adhesives or hooks or suction cups, and yet they can effortlessly scale vertical walls and hang from ceilings. What’s going on? Eleanor Nelsen e
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04:57 Popular
Eye Vs. Camera - Michael Mauser

8 years ago / 1,086 views

View full lesson: http://ed.ted.com/lessons/eye-vs-camera-michael-mauser Your eyes don’t always capture the world exactly as a video camera would. But the eyes are remarkably efficient organs, the result of hundreds of millions of years of coevolution wit
04:03 Popular
The Effects Of Underwater Pressure On The Body - Neosha S Kashef

8 years ago / 780 views

View full lesson: http://ed.ted.com/lessons/the-effects-of-underwater-pressure-on-the-body-neosha-s-kashef Why would a fish throw up its stomach? What makes a scuba diver develop painful microbubbles in their joints? Neosha S Kashef details the basics of
04:19 Popular
Why Is Biodiversity So Important? - Kim Preshoff

8 years ago / 1,450 views

View full lesson: http://ed.ted.com/lessons/why-is-biodiversity-so-important-kim-preshoff Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can be
04:10 Popular
How To Unboil An Egg - Eleanor Nelsen

8 years ago / 768 views

View full lesson: http://ed.ted.com/lessons/how-to-unboil-an-egg-eleanor-nelsen It’s so obvious that it’s practically proverbial: you can’t unboil an egg. But actually, it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mec
04:00 Popular
Could Your Brain Repair Itself? - Ralitsa Petrova

8 years ago / 858 views

View full lesson: http://ed.ted.com/lessons/could-your-brain-repair-itself-ralitsa-petrova Imagine the brain could reboot, updating its damaged cells with new, improved units. That may sound like science fiction — but it’s a potential reality scientists a
04:33 Popular
What Is Leukemia? - Danilo Allegra And Dania Puggioni

8 years ago / 926 views

View full lesson: http://ed.ted.com/lessons/what-is-leukemia-danilo-allegra-and-dania-puggioni Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when t
04:22 Popular
Why Do Your Knuckles Pop? - Eleanor Nelsen

8 years ago / 808 views

View full lesson: http://ed.ted.com/lessons/why-do-your-knuckles-pop-eleanor-nelsen Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives th
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07:42 Popular
Flesh-Eating Hydrofluoric Acid - Periodic Table Of Videos

8 years ago / 772 views

We dunk chicken drumsticks in dreaded Hydrofluoric Acid, along with Hydrochloric Acid and Sulfuric Acid. What do you think might happen? SECOND PART: https://www.youtube.com/watch?v=NGaOcp33rHw Fluorine reactions: http://youtu.be/vtWp45Eewtw Lightbulb in
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Comparing Mitosis And Meiosis

8 years ago / 759 views

Comparing Mitosis and Meiosis
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Chromosomal Crossover In Meiosis I

8 years ago / 492 views

Chromosomal crossover in Meiosis I
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Phases Of Meiosis I

8 years ago / 505 views

Phases of Meiosis I
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Phases Of Meiosis II

8 years ago / 657 views

Phases of Meiosis II
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Hearing & Balance: Crash Course A&P #17

8 years ago / 1,225 views

Crash Course A&P continues the journey through sensory systems with a look at how your sense of hearing works. We follow sounds as they work there way into the ear where they are registered and transformed into action potentials. This mechanism not only h
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08:28 Popular
Interphase

8 years ago / 776 views

Interphase of a cell's life cycle.
12:12 Popular
Mitosis

8 years ago / 708 views

Phases of mitosis: prophase, metaphase, anaphase, telophase
06:12 Popular
Could We Clone Ourselves?

8 years ago / 998 views

Just be yourself! Or be your other self. Whichever. Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Is the science of Orphan Black realistic? Could we clone humans, or engineer them to have customized traits? We
06:17 Popular
Sharks Sharks Sharks & More Sharks

8 years ago / 1,407 views

There are 12 living Orders of sharks and rays swimming in our oceans today, and more than 440 known species. Here are some of the wackier ones! ------------------ NEW! Subreddit: http://www.reddit.com/r/thebrainscoop/ Facebook: http://www.facebook.com/the
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Fossil Meteorites

8 years ago / 602 views

In which we set out and find fossil meteorites in time and space. Wait... meteorites can be fossilized?! Mind blown. Read more about Philipp Heck's meteoritical research and the arrival of fossil meteorites at The Field Museum! http://www.fieldmuseum.org/
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06:21 Popular
An Electric Eel And A Caiman

8 years ago / 727 views

Wherein Isobel and Maria show us the ropes -- or nets -- for surveying fishes in the Amazon. The distribution of fish in tropical river systems is important to understanding how animals move around these waterways. Where there are big fish -- like the ele
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Evolution Vs Natural Selection

8 years ago / 566 views

This video was supported in part by http://www.audible.com/minutephysics Special thanks to Subbable.com supporters Jonathan Kwok and quantumrealityproject.blogspot.com for helping make MinutePhysics possible. http://www.subbable.com/minutephysics US Demog
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Wanda Sykes' 'Monkey Kingdom'

8 years ago / 596 views

Ellen showed a peek at the new documentary as narrated by the hilarious comedian.
10:30 Popular
Taste&Smell: Crash Course A&P #16

8 years ago / 976 views

Hank resists the urge to devour a slice of pizza so that he can walk you through the way we experience our major special senses. It all boils down to one thing: sensory cells translating chemical, electromagnetic, and mechanical stimuli into action potent
13:02 Popular
DNA

9 years ago / 773 views

DNA - deoxyribonucleic acid
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15:24
RNA Transcription And Translation

9 years ago / 461 views

RNA transcription and translation
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08:18
Alleles And Genes

9 years ago / 476 views

Alleles and genes
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03:47 Popular
Meet The Puzzlebox Orbit: A Drone Controlled By Brain Waves

9 years ago / 757 views

The inventors of the Puzzlebox orbit believe they are on the cutting edge of biosensor technology. But can their brain-computer interface actually control this flying toy? | For more, visit http://www.sciencechannel.com/tv-shows/all-american-makers/#mkcpg
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Making Art With Microbes

9 years ago / 692 views

Meet Zachary Copfer, the man who has developed a process to make intricate portraits with microbes found on your skin. How does he do it? | For more Outrageous Acts of Science, visit http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn
04:25 Popular
Why Your Brain Is In Your Head

9 years ago / 782 views

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Check out BrainCraft: http://youtu.be/aucscX191vQ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow
04:14 Popular
You Are An Upside-Down Lobster

9 years ago / 763 views

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Here's why you aren't built like a lobster. Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow on Tw
04:46
How Your Body Knows Left From Right

9 years ago / 644 views

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Why are our bodies so symmetrical, but our guts aren't?↓ More info and sources below ↓ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub
06:10 Popular
The Oldest Living Things In The World

9 years ago / 720 views

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow
04:51 Popular
What If There Were No Sharks?

9 years ago / 2,048 views

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Follow this link to more shark science videos by your favorite YouTubers!! http://bit.ly/1sugd0z↓ More info and sources below ↓ Follow on Twitter:
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10:17 Popular
Parasympathetic Nervous System: Crash Course A&P #15

9 years ago / 1,119 views

This week we are looking at your parasympathetic division, which is the "resting and digesting" unit. Unfortunately, learning about this de-stressing division also involves a whole lot of memorization. Don't worry, though - we've got some mnemonic devices
03:11 Popular
Where Does The Smell Of Rain Come From?

9 years ago / 891 views

I smell a science storm a-comin'!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com References: “Nature of Argil
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05:45 Popular
What's The Deadliest Animal In The World?

9 years ago / 837 views

Besides humans, of course. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Gates Foundation info on the world’s
05:21 Popular
Bats: Guardians Of The Night

9 years ago / 955 views

To see all the great bat action, please watch in HD!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Visit Bat
05:31
Why Are Some People Left-Handed?

9 years ago / 678 views

The science of their sinister ways… Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http:/
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09:12 Popular
The Sixth Extinction

9 years ago / 801 views

This time, we’re the asteroid. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://inst
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04:32 Popular
Where Do Birds Go In Winter?

9 years ago / 894 views

And where do they keep their suitcases? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: ht
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04:34 Popular
How Many Smells Can You Smell?

9 years ago / 811 views

How do we smell? Great! Thanks for asking! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram:
05:02 Popular
There's No Such Thing As Cold

9 years ago / 745 views

If cold isn’t real, then how can I feel it? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram
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05:13 Popular
5 Weird Involuntary Behaviors Explained!

9 years ago / 759 views

Yawns, hiccups, twitchy eyes (and more) explained! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on In
04:46 Popular
How Many Heartbeats Do We Get?

9 years ago / 1,394 views

Science really gets my heart going… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart
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07:23 Popular
Why Vaccines Work

9 years ago / 909 views

A dose of reality about vaccines… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ As more and more parents are choosing not to vaccinate their children or are vaccinating them later, diseases like measles are mak
06:35 Popular
Attack Of The Zombie Parasites!

9 years ago / 823 views

Did someone say BRAAAAAINS…? Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Shows like The Walking Dead are full of hungry, mindless, surprisingly fleet-footed armies of brain-eating zombies. Could they actually
05:06 Popular
%$?# Allergies!

9 years ago / 894 views

It’s the season for sneezin’! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it’s also about sneezing, watery re
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The Recipe For Life…

9 years ago / 604 views

We're cookin' in the primordial kitchen! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info and sources below ↓ If the human body could be distilled down into one molecule, what would our chemical formula be? And WHY is it that way? Is
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07:24
Superbugs: The Empire Strikes Bacteria

9 years ago / 681 views

Check out GROSS SCIENCE: http://bit.ly/1DH5zbv Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info and sources below ↓ Are we entering the post-antibiotic era? Antibiotic-resistant bacteria are on the rise, with millions of infections re
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03:47
One Gene One Polypeptide

9 years ago / 595 views

Dubay discusses the one gene one polypeptide hypothesis from its origins dating back to the work of Beadle and Tatum to the more recent refinements from Sharp and Roberts involving the role...
10:44
Sympathetic Nervous System: Crash Course A&P #14

9 years ago / 688 views

Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system. -- Table of Contents Sympathetic Nervous System Controls the Body's Stress Response 0:26 How Signals Travel to Effectors 1:48 Ace
04:00 Popular
Cell Vs. Virus: A Battle For Health - Shannon Stiles

9 years ago / 1,113 views

View full lesson: http://ed.ted.com/lessons/cell-vs-virus-a-battle-for-health-shannon-stiles All living things are made of cells. In the human body, these highly efficient units are protected...
04:29 Popular
DNA: The Book Of You - Joe Hanson

9 years ago / 987 views

View full lesson: http://ed.ted.com/lessons/dna-the-book-of-you-joe-hanson Your body is made of cells -- but how does a single cell know to become part of your nose, instead of your toes?...
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04:44 Popular
How Do Vitamins Work? - Ginnie Trinh Nguyen

9 years ago / 1,398 views

View full lesson: http://ed.ted.com/lessons/what-s-the-value-of-vitamins-ginnie-trinh-nguyen Vitamins are the building blocks that keep our bodies running; they help build muscle and bone,...
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03:55 Popular
The Science Of Spiciness - Rose Eveleth

9 years ago / 781 views

View full lesson: http://ed.ted.com/lessons/the-science-of-spiciness-rose-eveleth When you take a bite of a hot pepper, your body reacts as if your mouth is on fire -- because that's essentially...
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05:19 Popular
How Optical Illusions Trick Your Brain - Nathan S. Jacobs

9 years ago / 1,973 views

View full lesson: http://ed.ted.com/lessons/how-optical-illusions-trick-your-brain-nathan-s-jacobs Optical illusions are images that seem to trick our minds into seeing something different...
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03:37 Popular
How Does The Thyroid Manage Your Metabolism? - Emma Bryce

9 years ago / 760 views

View full lesson: http://ed.ted.com/lessons/how-does-the-thyroid-manage-your-metabolism-emma-bryce Nestled in the tissues of your neck is a small, unassuming organ that wields enormous power...
03:22 Popular
How Do The Lungs Work? - Emma Bryce

9 years ago / 928 views

View full lesson: http://ed.ted.com/lessons/what-do-the-lungs-do-emma-bryce When you breathe, you transport oxygen to the body's cells to keep them working, while also clearing your system...
04:05 Popular
What Are Those Floaty Things In Your Eye? - Michael Mauser

9 years ago / 837 views

View full lesson: http://ed.ted.com/lessons/what-are-those-floaty-things-in-your-eye-michael-mauser Sometimes, against a uniform, bright background such as a clear sky or a blank computer...
04:58 Popular
How Does Your Brain Respond To Pain? - Karen D. Davis

9 years ago / 751 views

View full lesson: http://ed.ted.com/lessons/how-does-your-brain-respond-to-pain-karen-d-davis Everyone experiences pain -- but why do some people react to the same painful stimulus in different...
04:28 Popular
How Do Dogs Smell

9 years ago / 1,405 views

View full lesson: http://ed.ted.com/lessons/how-do-dogs-see-with-their-noses-alexandra-horowitz You may have heard the expression that dogs 'see with their noses.' But these creature's...
05:07 Popular
Why Are Some People Left-handed? - Daniel M. Abrams

9 years ago / 906 views

View full lesson: http://ed.ted.com/lessons/why-are-some-people-left-handed-daniel-m-abrams Today, about one-tenth of the world's population are southpaws. Why are such a small proportion...
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05:45 Popular
The Benefits Of A Good Night's Sleep - Shai Marcu

9 years ago / 913 views

View full lesson: http://ed.ted.com/lessons/the-benefits-of-a-good-night-s-sleep-shai-marcu It's 4am, and the big test is in 8 hours. You've been studying for days, but you still don't...
04:14 Popular
What Causes Bad Breath? - Mel Rosenberg

9 years ago / 818 views

View full lesson: http://ed.ted.com/lessons/what-causes-bad-breath-mel-rosenberg Halitosis is a curse that has plagued humanity since ancient times. But what causes it, and why is it so universall...
03:53 Popular
Where Did Earth’s Water Come From? - Zachary Metz

9 years ago / 977 views

View full lesson: http://ed.ted.com/lessons/where-did-earth-s-water-come-from-zachary-metz Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again....
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05:34 Popular
At What Moment Are You Dead? - Randall Hayes

9 years ago / 709 views

View full lesson: http://ed.ted.com/lessons/at-what-moment-are-you-dead-randall-hayes For as far back as we can trace our existence, humans have been fascinated with death and resurrection....
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The Lost Giants of Georgia

9 years ago / 633 views

A discovery of bones belonging to seemingly giant people raise questions. Research looks to the real giants that live among us. | For more, visit http://science.discovery.com/tv-shows/the-unexplained-files/#mkcpgn=ytsci1 Subscribe to Science Channel! | ht
02:27
Do Transplanted Organs Carry Memories?

9 years ago / 619 views

Hundreds of organ recipients have reported unique experiences after their transplant. | For more, visit http://science.discovery.com/tv-shows/the-unexplained-files/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscription_center?a
02:41 Popular
Raining Fish In London | World's Strangest

9 years ago / 892 views

You've heard the expression "it's raining cats and dogs," but once it literally rained fish in England. What's the true story? | For more World's Strangest, visit http://www.sciencechannel.com/tv-shows/worlds-strangest/#mkcpgn=ytsci1 Catch World's Strange
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03:18 Popular
Algae Fuel Could Change the World | World's Strangest

9 years ago / 775 views

This literally green technology could completely revolutionize the transportation industry. | For more World's Strangest, visit http://www.sciencechannel.com/tv-shows/worlds-strangest/#mkcpgn=ytsci1 Catch World's Strangest Tuesdays at 8/7c on Science Chan
02:31
Dinosaur Hordes On The Move

9 years ago / 662 views

Get a glimpse of the different dinosaur herds roaming the land. Large brontosaurs move with their babies. Families of pterodans and pterodactyls fly across the sky. Apatosaurus and Shantungosaurus herds move across the earth. Watch the whole playlist of d
02:30 Popular
SUPER-CUTE VIDEO OF DINOSAUR BABIES!!!

9 years ago / 876 views

Baby animals are cute, even T-Rex babies. See a baby Brontosaurus in the egg before it hatches and a baby Tyrannosaurus in its parents mouth. There are more dinosaur babies interacting with their mothers, the world around them, and just plain having fun.
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02:04 Popular
Exclusive Video of Tyrannosaurus Rex the KILLER!

9 years ago / 1,700 views

The Tyrannosaurus Rex, or T-Rex, was the most feared and vicious species of its time. Here are some T-Rex's hunting, killing and battling one another. Watch this amazing CGI video of the T-Rex: King of the Dinosaurs. It's like having Walking With Dinosaur
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02:26 Popular
Dinosaurs BATTLE To The Death! - Discovery Dinosaurs

9 years ago / 1,830 views

Dinosaur fights and battles were epic at its time. Here are scenes of different dinosaurs battling to the death. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 S
02:15 Popular
Dinos Invade Our World!

9 years ago / 761 views

How would dinosaurs look like in our world? Take a look at these creatures in the context of the modern world and see how massive they are when placed in a more familiar setting. Do you love nature? Use Magisto's "Wild Nature" filter on your own video to
02:17 Popular
How Dinosaurs Are Born

9 years ago / 842 views

Ever wonder how animals as big as dinosaurs are born? Watch the miracle of life from the dinosaur perspective. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Sub
02:05 Popular
Cutest Baby Dinosaurs

9 years ago / 903 views

The gentle Brontosaurus is one of the most well known dinosaur species ever and its babies are lovable. Take a look at some fun loving Brontosaurus babies hatch into the world. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch
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02:29
These Dinosaurs Are Hungry!

9 years ago / 690 views

What do dinosaurs do when they get hungry? Take a look at some of the crazy antics they go through for a quick bite. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index
02:19 Popular
Biggest T-Rex BATTLES!

9 years ago / 1,267 views

What happens when T-Rex hunters become the hunted? It's a battle for dominance among the most ferocious of all the dinosaurs! Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p
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02:07 Popular
What Did Dinosaurs Eat?

9 years ago / 944 views

Find out what herbivore dinos ate as dinosaurs large and small graze on sumptuous prehistoric foliage. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe F
02:26 Popular
Even Bigger Dinosaur Battles!

9 years ago / 1,183 views

The battles are never over in the dinosaur world! Stay on your toes to stay safe from predators. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For Mor
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02:06 Popular
A Look At Prehistoric Mammals

9 years ago / 718 views

It turns out that dinosaurs weren't the only huge creatures roaming the earth during prehistoric times. This time, we look at Wooly Mammoths and other mammals that also existed millions of years ago. Watch the whole playlist of dinosaur videos here: http:
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02:27 Popular
T-Rex Babies In HUGE Danger!

9 years ago / 970 views

Uh-oh! See the trouble that T-Rex youngsters can get into without mom and dad's supervision. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Di
02:32 Popular
Laziest Dinosaurs Ever

9 years ago / 869 views

On hazy days, even dinosaurs sometimes take a break and lounge around. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur Videos: http://
02:37 Popular
Epic Turf Battle!

9 years ago / 769 views

A dinosaur can't rest when he finds that his favorite spot is taken, and it turns in to a turf war between these prehistoric beasts. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD
02:26
Dinosaurs In Love

9 years ago / 682 views

Saving a female from danger helps one dinosaur Romeo find win her love during mating season. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Di
02:03 Popular
Dinosaurs Running From Danger!

9 years ago / 800 views

When danger approaches, the hunted must scramble to survive! Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur Videos: http://www.youtub
02:20 Popular
Look Inside A Dinosaur!

9 years ago / 1,012 views

Get an in-depth view of the inside of dinosaurs from inside the egg, to nerves and muscles, see how dinosaur bodies really worked. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4r
01:47 Popular
Dinosaur ROMANCE

9 years ago / 740 views

Dinosaurs expressed love, too. See how the mating process brought pairs together. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur Vide
02:13 Popular
Small But Deadly!

9 years ago / 794 views

Don't judge danger by its size. Small dinosaurs were not cute and cuddly. They were just as dangerous if not more, than some big dinosaurs because most hunted in numbers. Troodons attack in numbers. Watch the whole playlist of dinosaur videos here: http:/
02:03 Popular
GROSS Dinosaur Stuff

9 years ago / 1,173 views

Dinosaurs did gross things like sneeze, slobber, and poop. They probably even tripped and fell a bit too. Many had killing habits that might gross you out. See a T-Rex poop before it fights and get its arm bitten off during battle and see a beelzebufo, a
02:21 Popular
How Dinosaurs Went Extinct!

9 years ago / 1,142 views

Meteors came hurtling to Earth and stopped life as they knew it for the dinosaurs. Complete and instantaneous extinction is no longer the theory. What did the extinction look like? See how a T-Rex survives impact as some animals did, only to succumb to th
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01:59
Mammoths Hunted for their Hides

9 years ago / 617 views

Mammoths lived and migrated in herds. They raised their young in groups and were hunted my nomadic tribes for their hides and meat. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4
02:06 Popular
When Dinosaurs ATTACK!

9 years ago / 801 views

Dinosaurs hunt and kill to eat. Sometimes those battles to survive are ferocious but it's either eat or be eaten, hunt or be hunted. Staying alert is a must. A T-Rex could be right behind you. Sadly a Triceratops finds out the hard way. Watch the whole pl
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Big HORNED Dinosaurs

9 years ago / 693 views

Meet the Parasaurolophus, a horned dinosaur that walked on two legs, but also walked on all fours. This herbivore had options. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14
02:07 Popular
SCARY Dinosaur Roars!

9 years ago / 1,886 views

The T-Rex is probably the most famous dinosaur of all time. But what did it sound like? Has Jurassic Park got it all wrong? Alastair takes you through what the Tyrannosaurus Rex ACTUALLY sounded like. For more news on Shadow Of War, the MonsterVerse, Jura
02:32 Popular
So You Think Dinosaurs Can Dance?

9 years ago / 799 views

Dinosaurs aren't just serious. Let's have some fun and dance with these dinos. The brightly colored Giagantoraptor has and the small Eoraptros seem to have the best moves, but don't count out the Cryolophosaurus - he's not called the Elvisaurus for nothin
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02:13 Popular
A Look INSIDE Dinosaurs

9 years ago / 1,247 views

With modern technology we are able to hypothesize how the dinosaur anatomy operated and moved. See the skeletal and nervous systems of prehistoric creatures such as T-Rex, Sauropods, Triceratops and Raptors. Watch the whole playlist of dinosaur videos her
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02:32 Popular
Dinosaur Eats Poison Mushrooms!

9 years ago / 1,061 views

One dinosaur does not heed the warning to stay away from some delicious-looking mushrooms. The effects from eating them are not good. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40w
02:05 Popular
Crazy Dinosaur Mating Dance

9 years ago / 879 views

Things get sexy on this edition of Discovery Dinosaurs. It's mating season, and some male dinosaurs create exotic dance displays to get the attention of their potential mates. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?
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Feathered Dinosaurs: Bird Ancestors?!

9 years ago / 644 views

Recent discoveries prove that many dinosaurs had feathers, some of which may have been very bright and colorful. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 S
02:31 Popular
Baby Dinosaur's First Flight!

9 years ago / 743 views

Flying dinos learned to fly quickly or paid the price if they didn't! Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur Videos: http://w
02:15
Small Dinosaurs Get Their Revenge

9 years ago / 651 views

This dinosaur has a long memory and though he's smaller, he still seeks his revenge. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur V
02:16 Popular
Only The Strong Survive: Dinosaurs BATTLE

9 years ago / 817 views

When it's mating season, only the strongest survive when two males compete for the affection of a prized female. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 S
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02:08 Popular
Most Gruesome Dinosaur Deaths

9 years ago / 933 views

Be warned: Some dinosaur battles end in very grisly deaths! Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur Videos: http://www.youtube
02:02 Popular
KILLER Dinosaur Bugs!

9 years ago / 1,014 views

Sometimes dinosaurs didn't just have to worry about other dino predators: sometimes they were on the run from KILLER PREHISTORIC INSECTS! Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hl
02:31 Popular
MEGA-HUGE: The Biggest Dinosaurs Ever!

9 years ago / 1,358 views

Super-huge dinosaurs like the Brontosaurus and Brachiosaurus roamed the earth in search of food and traveled in herds to protect their young. Though large in stature, most big dinosaurs that once roamed the Earth were herbivores. Watch the whole playlist
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02:36 Popular
Prehistoric Flying Squirrels Take Flight!

9 years ago / 708 views

The exciting life of a flying squirrel in the Jurassic period. Watch as they take to the sky to avoid danger from hungry dinosaurs. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4
01:59 Popular
Prehistoric Beavers Make A Daring Escape!!

9 years ago / 774 views

A beaver from the Jurassic Period must be wily to escape danger from dinosaur predators! Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosa
02:02 Popular
DANGER: Attack of the Nighttime Dinosaur!

9 years ago / 829 views

Not all dinosaurs sleep at night: danger still lurks everywhere, so dinos can never let their guard down! Amazing CG footage of dinosaurs hunting at night! Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=P
02:14 Popular
SO CUTE: Sleeping Dinosaurs!!

9 years ago / 935 views

Even dinosaurs need to take a break sometimes. This time, we watch dinosaurs taking it easy, resting and relaxing in their prehistoric environment. Maybe they aren't fuzzy, but these are the cutest dinosaurs EVER! Watch the whole playlist of dinosaur vide
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02:28 Popular
Dinosaur Babies In Danger!

9 years ago / 1,100 views

A dinosaur baby must scramble to escape danger when mom and dad can't protect him. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur Vid
02:01 Popular
Dinosaur Heroes

9 years ago / 964 views

No one likes bullies, even in the dinosaur world. This dino hero is looking out for the little guy as he gets chased down by some ferocious raptors. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH
02:08 Popular
Completed Dinosaur Fossils Revealed

9 years ago / 1,016 views

All we have left of dinosaurs are their bones, but with much study, they have revealed a lot about their lives during prehistoric times. From Tyrannosaurus Rex fossils to Velociraptor fossils and many more, see how these remnants of the past have revealed
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43:48 Popular
Amazing Dinosaurs for KIDS

9 years ago / 1,143 views

See CUTE dinosaur babies born and watch take their first clumsy steps. Little tiny Brontosaurus babies run around their family herd triceratops teens play in a field. See FUNNY dinosaur falls and GROSS dinosaur sneezes. Watch a prehistoric squirrel outsma
51:52 Popular
You Think You Know Dinosaurs - Think Again!

9 years ago / 1,421 views

Large lizards stomping around the planet - that's all to dinosaurs right? WRONG! Some dinosaurs had brightly colored feathers. Some dinosaurs were attentive parents. Some dinosaurs gave birth to live young rather than hatching them in eggs. Want to see? I
56:32 Popular
The BEST of Discovery's Dinosaurs

9 years ago / 1,244 views

Enter the prehistoric world when dinosaurs ruled the Earth. See them hunt and battle. See them roam in massive herds. Go back in time and experience what dinosaur life was like. Do you love nature? Use Magisto's "Wild Nature" filter on your own video to w
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Noah Ritter Walks with Dinosaurs

9 years ago / 631 views

He wasn't fooled by the dinosaur on Ellen's show, but these big guys sure did impress! You can follow Noah on Instagram @NoahRitter.
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Smithsonian National Zoo (webisode)

9 years ago / 623 views

A brief look at Great Museums' episode featuring the Smithsonian National Zoo and its efforts to save endangered species of our planet, which aired on Public Television in Fall 2008. Click on http://greatmuseums.org for more information.
10:26 Popular
Ecology - Rules for Living on Earth: Crash Course Biology #40

9 years ago / 2,198 views

Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been interacting with ea
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11:52 Popular
Fungi: Death Becomes Them - CrashCourse Biology #39

9 years ago / 958 views

Death is what fungi are all about. By feasting on the deceased remains of almost all organisms on the planet, converting the organic matter back into soil from which new life will spring, they perform perhaps the most vital function in the global food web
10:24 Popular
The Plants&The Bees: Plant Reproduction - CrashCourse Biology #38

9 years ago / 1,704 views

Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they've tricked it out so that it works a whole lot differently compared to the wa
11:54 Popular
Vascular Plants = Winning! - Crash Course Biology #37

9 years ago / 1,084 views

Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can take food and water f
09:42 Popular
The Lives of Nonvascular Plants: Alternation of Generations - Crash Course Biology #36

9 years ago / 1,384 views

Hank introduces us to nonvascular plants - liverworts, hornworts&mosses - which have bizarre features, kooky habits, and strange sex lives. Nonvascular plants inherited their reproductive cycle from algae, but have perfected it to the point where it i
12:17 Popular
Old&Odd: Archaea, Bacteria&Protists - CrashCourse Biology #35

9 years ago / 827 views

Hank veers away from human anatomy to teach us about the (mostly) single-celled organisms that make up two of the three taxonomic domains of life, and one of the four kingdoms: Archaea, Bacteria, and Protists. They are by far the most abundant organisms o
11:21 Popular
Great Glands - Your Endocrine System: CrashCourse Biology #33

9 years ago / 1,181 views

Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development&function. Like CrashCourse on Facebook: h
15:02 Popular
Your Immune System: Natural Born Killer - Crash Course Biology #32

9 years ago / 907 views

Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCour
12:52 Popular
Big Guns: The Muscular System - CrashCourse Biology #31

9 years ago / 1,766 views

Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse: http://www.facebook.com/YouTubeCrashCourse Follow CrashCo
13:11 Popular
The Skeletal System: It's ALIVE! - CrashCourse Biology #30

9 years ago / 1,288 views

Hank introduces us to the framework of our bodies, our skeleton, which apart from being the support and protection for all our fleshy parts, is involved in many other vital processes that help our bodies to function properly. Crash Course Biology is now a
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12:21 Popular
The Excretory System: From Your Heart to the Toilet - CrashCourse Biology #29

9 years ago / 1,273 views

Hank takes us on the fascinating journey through our excretory system to learn how our kidneys make pee. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow Cras
11:53 Popular
The Digestive System: CrashCourse Biology #28

9 years ago / 1,062 views

Hank takes us through the bowels of the human digestive system and explains why it's all about surface area. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like Crash Course? http://www.facebook.com/youtubecrashcourse Follow Crash Cours
11:40 Popular
Circulatory&Respiratory Systems - CrashCourse Biology #27

9 years ago / 2,203 views

Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function. Crash Course Biology is now available on DVD! ht
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The Nervous System - CrashCourse Biology #26

9 years ago / 2,249 views

Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse on Facebook: http://www.face
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10:54 Popular
Animal Behavior - CrashCourse Biology #25

9 years ago / 1,135 views

Hank and his cat Cameo help teach us about animal behavior and how we can discover why animals do the things they do. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like Crash Course on Facebook: http://www.facebook.com/youtubecrashcour
12:10 Popular
Chordates - CrashCourse Biology #24

9 years ago / 1,618 views

Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal sarcopterygian osteich
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Complex Animals: Annelids&Arthropods - CrashCourse Biology #23

9 years ago / 677 views

Hank continues our exploration of animal phyla with the more complexly organized annelida and arthropoda, and a biolography on insects. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com
11:31 Popular
Simple Animals: Sponges, Jellies,&Octopuses - Crash Course Biology #22

9 years ago / 832 views

Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopuses a
08:51 Popular
Comparative Anatomy: What Makes Us Animals - Crash Course Biology #21

9 years ago / 1,750 views

Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like
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Evolution: It's a Thing - Crash Course Biology #20

9 years ago / 1,134 views

Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization. Crash Course Biology is now availabl
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12:16 Popular
Taxonomy: Life's Filing System - Crash Course Biology #19

9 years ago / 1,231 views

Hank tells us the background story and explains the importance of the science of classifying living things, also known as taxonomy. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/You
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11:05 Popular
Population Genetics: When Darwin Met Mendel - Crash Course Biology #18

9 years ago / 930 views

Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation. Crash Course Biology is now available on DVD! http://dft.ba/-8
10:57 Popular
Evolutionary Development: Chicken Teeth - Crash Course Biology #17

9 years ago / 1,060 views

Hank introduces us to the relatively new field of evolutionary developmental biology, which compares the developmental processes of different organisms to determine their ancestral relationship, and to discover how those processes evolved. Also fruit flie
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11:32 Popular
Animal Development: We're Just Tubes - Crash Course Biology #16

9 years ago / 862 views

Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/youtubecrashcourse
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10:25 Popular
Speciation: Of Ligers&Men - Crash Course Biology #15

9 years ago / 1,482 views

Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.c
12:45 Popular
Natural Selection - Crash Course Biology #14

9 years ago / 2,012 views

Hank guides us through the process of natural selection, the key mechanism of evolution. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.fa
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11:43 Popular
Cell Meiosis: Crash Course Biology #13

9 years ago / 985 views

Hank gets down to the nitty gritty about meiosis, the special type of cell division that is necessary for sexual reproduction in eukaryotic organisms. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Compl
10:48 Popular
Mitosis: Splitting Up is Complicated - Crash Course Biology #12

9 years ago / 1,409 views

Hank describes mitosis and cytokinesis - the series of processes our cells go through to divide into two identical copies. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like Cras
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14:08 Popular
DNA, Hot Pockets,&The Longest Word Ever: Crash Course Biology #11

9 years ago / 1,119 views

Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins. Crash Course B
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DNA Structure and Replication: Crash Course Biology #10

9 years ago / 1,182 views

Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series
10:18 Popular
Heredity: Crash Course Biology #9

9 years ago / 824 views

Hank and his brother John discuss heredity via the gross example of relative ear wax moistness. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook! http:/
13:15 Popular
Photosynthesis: Crash Course Biology #8

9 years ago / 1,044 views

Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well. Crash Course Biology is now available on DVD! http://dftba.com/pro
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ATP&Respiration: Crash Course Biology #7

9 years ago / 840 views

In which Hank does some push ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/Cras
10:28 Popular
Plant Cells: Crash Course Biology #6

9 years ago / 1,484 views

Hank describes why plants are so freaking amazing - discussing their evolution, and how their cells are both similar to&different from animal cells. Crash Course Biology now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-S
11:45 Popular
In Da Club - Membranes&Transport: Crash Course Biology #5

9 years ago / 729 views

Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like Cras
11:35 Popular
Eukaryopolis - The City of Animal Cells: Crash Course Biology #4

9 years ago / 1,091 views

Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Se
14:09 Popular
Biological Molecules - You Are What You Eat: Crash Course Biology #3

9 years ago / 1,528 views

Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCou
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11:17 Popular
Water - Liquid Awesome: Crash Course Biology #2

9 years ago / 1,637 views

Hank teaches us why water is one of the most fascinating and important substances in the universe. Follow SciShow on Twitter: http://www.twitter.com/scishow Like SciShow on Facebook: http://www.facebook.com/scishow Review: Re-watch = 00:00 Introduction =
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12:33 Popular
That's Why Carbon Is A Tramp: Crash Course Biology #1

9 years ago / 1,428 views

And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert Lewis? It's all containe
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Disease! Crash Course World History 203

9 years ago / 973 views

In which John Green teaches you about disease, and the effects that disease has had in human history. Disease has been with man since the beginning, and it has shaped the way humans operate in a lot of ways. John will teach you about the Black Death, the
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The Deep Future: Crash Course Big History #10

9 years ago / 827 views

Finally, after what seems like eons and eons, the end is nigh. We're talking not only about the end of Crash Course Big History, but also the end of everything. The end of humanity and the end of the universe.John and Hank Green will teach you about what
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The Anthropocene and the Near Future: Crash Course Big History #9

9 years ago / 682 views

In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle, and awesome elect
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Migrations and Intensification: Crash Course Big History #7

9 years ago / 1,026 views

In which Hank and John Green teach you about humanity conquering the Earth. Or at least moving from Africa into the rest of the Earth. As human beings spread out across the world and populations grew, humanity reached a critical mass of innovators, and co
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Human Evolution: Crash Course Big History #6

9 years ago / 998 views

In which John Green and Hank Green teach you about how human primates moved out of Africa and turned Earth into a real-life Planet of the Apes. And the apes are people! John and Hank teach you about how humans evolved, and the sort of tricks they picked u
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The Evolutionary Epic: Crash Course Big History #5

9 years ago / 997 views

In which John Green, Hank Green, and Emily Graslie teach you about evolution. So, in the last 3.8 billion years, life on Earth has evolved from single-celled prokaryotes to the dizzying array of life we have today. So how did all this happen? We'll talk a
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Life Begins: Crash Course Big History #4

9 years ago / 877 views

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they dev
12:41
Taxonomy and the Tree of Life

9 years ago / 673 views

The science of taxonomy and where humans fit into the tree of life More free lessons at: http://www.khanacademy.org/video?v=oHvLlS_Sc54
08:49
Species

9 years ago / 663 views

What a species is and isn't. Ligers, tiglons, mule, hinnies, and dogs More free lessons at: http://www.khanacademy.org/video?v=Tmt4zrDK3dA
14:13
Secondary Active Transport in the Nephron

9 years ago / 394 views

Secondary Active Transport in the Nephron More free lessons at: http://www.khanacademy.org/video?v=czY5nyvZ7cU
14:35
Inflammatory Response

9 years ago / 478 views

Overview of the inflammatory response More free lessons at: http://www.khanacademy.org/video?v=FXSuEIMrPQk
11:07
Review of B cells, CD4+ T cells and CD8+ T cells

9 years ago / 593 views

Review of B cells, CD4+ T cells and CD8+ T cells More free lessons at: http://www.khanacademy.org/video?v=xaz5ftvZCyI
10:07
Cytotoxic T Cells

9 years ago / 561 views

How cytotoxic T cells get activated by MHC-I/antigen complexes and then proceed to kill infected cells More free lessons at: http://www.khanacademy.org/video?v=oqI4skjr6lQ
20:34
Helper T Cells

9 years ago / 588 views

Introduction to helper T cells and their role in activating B cells More free lessons at: http://www.khanacademy.org/video?v=uwMYpTYsNZM
11:33
Professional Antigen Presenting Cells (APC) and MHC II complexes

9 years ago / 504 views

How professional antigen presenting cells present parts of engulfed pathogens on MHC II complexes (major histocompatibility complexes). More free lessons at: http://www.khanacademy.org/video?v=j_kSmmEpvQk
14:13 Popular
B Lymphocytes (B cells)

9 years ago / 834 views

Overview of B cells (B lymphocytes) and how they are activated and produce antibodies More free lessons at: http://www.khanacademy.org/video?v=Z36dUduOk1Y
08:07
Types of immune responses: Innate and Adaptive. Humoral vs. Cell-Mediated

9 years ago / 571 views

Overview of types of immune responses. Difference between innate and adaptive immunity. Differences between humoral adaptive immunity and cell-mediated adaptive immunity. More free lessons at: http://www.khanacademy.org/video?v=rp7T4IItbtM
16:20
Role of Phagocytes in Innate or Nonspecific Immunity

9 years ago / 457 views

Role of phagocytes in innate or nonspecific immunity. Neutrophils, macrophages, and dendritic cells. MHC II. More free lessons at: http://www.khanacademy.org/video?v=O1N2rENXq_Y
16:32
Anatomy of a muscle cell

9 years ago / 546 views

Understanding the structure of a muscle cell More free lessons at: http://www.khanacademy.org/video?v=uY2ZOsCnXIA
14:43 Popular
Role of the Sarcoplasmic Reticulum in Muscle Cells

9 years ago / 871 views

The role of the sarcoplasmic reticulum in controlling calcium ion concentrations within the muscle cell More free lessons at: http://www.khanacademy.org/video?v=SauhB2fYQkM
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09:22
Tropomyosin and troponin and their role in regulating muscle contraction

9 years ago / 684 views

Tropomyosin and troponin and their role in regulating muscle contraction. How calcium ion concentration dictates whether a muscle is contracting or not. More free lessons at: http://www.khanacademy.org/video?v=LiOfeSsjrB8
09:38
Myosin and Actin

9 years ago / 514 views

How myosin and actin interact to produce mechanical force. More free lessons at: http://www.khanacademy.org/video?v=zopoN2i7ALQ
15:54
Neuronal Synapses (Chemical)

9 years ago / 497 views

How one neuron can stimulate (or inhibit) another neuron at a chemical synapse More free lessons at: http://www.khanacademy.org/video?v=Tbq-KZaXiL4
18:53
Electrotonic and Action Potentials

9 years ago / 506 views

How electrotonic and action potentials propagate down cells
06:48
Correction to Sodium and Potassium Pump Video

9 years ago / 619 views

Correction to Sodium and Potassium Pump Video More free lessons at: http://www.khanacademy.org/video?v=ye3rTjLCvAU
13:53
Sodium Potassium Pump

9 years ago / 430 views

How a sodium potassium pump can maintain a voltage gradient across a cell or neuron's membrane More free lessons at: http://www.khanacademy.org/video?v=C_H-ONQFjpQ
06:13
Anatomy of a Neuron

9 years ago / 651 views

Introduction to the neuron and its anatomy More free lessons at: http://www.khanacademy.org/video?v=ob5U8zPbAX4
14:34
Hemoglobin

9 years ago / 508 views

Hemoglobin and its role in the circulatory system More free lessons at: http://www.khanacademy.org/video?v=LWtXthfG9_M
14:57 Popular
Circulatory System and the Heart

9 years ago / 891 views

Introduction to the circulatory system and the heart More free lessons at: http://www.khanacademy.org/video?v=QhiVnFvshZg
16:30 Popular
Red blood cells

9 years ago / 741 views

Oxygen uptake by hemoglobin in red blood cells More free lessons at: http://www.khanacademy.org/video?v=fLKOBQ6cZHA
20:33
The Lungs and Pulmonary System

9 years ago / 517 views

The pulmonary system including the lungs, larynx, trachea, bronchi, bronchioles, alveoli and thoracic diaphragm More free lessons at: http://www.khanacademy.org/video?v=SPGRkexI_cs
21:04
Parts of a cell

9 years ago / 541 views

Parts of a cell: nucleus, ribosomes, endoplasmic reticulum, Golgi bodies, mitochondria, chloroplasts, vacuoles, and vesicles
08:37 Popular
CAM Plants

9 years ago / 911 views

How CAM Plants are able to fix carbon at night so they don't have to keep their stomata open during the day More free lessons at: http://www.khanacademy.org/video?v=xp6Zj24h8uA
16:58
C-4 Photosynthesis

9 years ago / 623 views

C-4 Photosynthesis: How some plants avoid photorespiration More free lessons at: http://www.khanacademy.org/video?v=7ynX_F-SwNY
17:03 Popular
Photorespiration

9 years ago / 3,597 views

More detail on the Calvin Cycle and Photorespiration More free lessons at: http://www.khanacademy.org/video?v=EQvTEFCANTM
13:28
Photosynthesis: Calvin Cycle

9 years ago / 555 views

The Calvin Cycle or the light-independent (dark) reactions of photosythesis More free lessons at: http://www.khanacademy.org/video?v=slm6D2VEXYs
18:51 Popular
Photosynthesis: Light Reactions and Photophosphorylation

9 years ago / 818 views

More detail on the light reactions and photophorylation More free lessons at: http://www.khanacademy.org/video?v=yfR36PMWegg
20:16
Photosynthesis: Light Reactions 1

9 years ago / 591 views

Details on the light-dependent reactions of photosynthesis More free lessons at: http://www.khanacademy.org/video?v=GR2GA7chA_c