KidzTube
Welcome
Login / Register

A Flea's Fantastic Jump Takes More Than Muscle | Deep Look

Thanks! Share it with your friends!

URL

You disliked this video. Thanks for the feedback!

Sorry, only registred users can create playlists.
URL


 Biology   |   Environmental   |   Science
 Find Related Videos  added
39 Views

Description

Before they can bite your cat or dog, these little "itch hikers" make an amazing leap 100 times faster than the blink of an eye. So how do they do it?

Follow Lauren Sommer in her new job at NPR: https://www.npr.org/people/803934365/lauren-sommer
Please join our community on Patreon! https://www.patreon.com/deeplook

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.

---
Spring is here, and with it, the start of flea season. With the warming weather, people and their pets are spending more time outside which increases the chances of bringing home a hungry itch hiker.
While pet owners curse the tiny insects and look for a way to rid them from their homes, it turns out fleas actually perform some remarkable athletic feats, like jumping 50 times their height the equivalent of a human jumping 300 feet or leaping so fast that they take off 100 times faster than the blink of an eye.
No larger than a sesame seed and flattened side to side, fleas can slip through fur with ease. Their jump is so fast they seem to simply vanish and reappear somewhere else.
It's there and then it's gone, said Gregory Sutton, a professor of biomechanics at the University of Lincoln in the United Kingdom.

--- What do flea eggs look like?
After feeding on blood, adult fleas mate and lay eggs. The eggs drop out of their host animals fur or feathers and into their bedding or nest. The eggs are translucent white and very small. At 0.5mm the eggs are about the size of a grain of salt.

--- Why do fleas bite me?
Blood is a protein-rich food for fleas. Adult fleas feed on blood before they can procreate.

--- Why does my dog/cat keep getting fleas?
Fleas are nest parasites. Their eggs fall from the host animal into its bedding where they hatch. The worm-like larvae feed on organic debris (including the adult fleas feces) in the bedding. They then curl up into a cocoon and undergo metamorphosis into their adult form. Flea baths tend to kill the fleas currently on the pet, but there may still be flea eggs and larvae in the pets bedding. When those young fleas mature they may reinfest the pet.

---+ Read the entire article on KQED Science:

https://www.kqed.org/science/1957872/a-fleas-fantastic-jump-takes-more-than-muscle

---+ For more information:

Why do Large Animals Never Actuate Their Jumps with Latch-Mediated Springs? Because They can Jump Higher Without Them.
(Gregory P Sutton, Elizabeth Mendoza, Emanuel Azizi, Sarah J Longo, Jeffrey P Olberding, Mark Ilton, Sheila N Patek)
https://academic.oup.com/icb/article/59/6/1609/5545545


---+ Shoutout!

Congratulations to the following fans on our YouTube community tab who identified the colorful crustacean that stores energy and releases a powerful punch using the same mechanism that fleas use to jumpstart their jump: the mantis shrimp!

The Chicken Wizard
Skunky H
Shin M.
Soren Rohrbach
kick Blade

---+ Thank you to our Top Patreon Supporters ($10+ per month)!

Accailia
Alex
Amber Miller
Aurora
Aurora Mitchell
Bethany
Bill Cass
Blanca Vides
Burt Humburg
Caitlin McDonough
Carlos Carrasco
Chris B Emrick
Chris Murphy
Cindy McGill
Companion Cube
Daisuke Goto
dane rosseter
Daniel Weinstein
David Deshpande
Dean Skoglund
Edwin Rivas
Egg-Roll
Elizabeth Ann Ditz
Geidi Rodriguez
Gerardo Alfaro
Guillaume Morin
Jane Orbuch
Joao Ascensao
johanna reis
Johnnyonnyful
Josh Kuroda
Joshua Murallon Robertson
Justin Bull
Kallie Moore
Karen Reynolds
Kendall Rasmussen
Kristy Freeman
KW
Kyle Fisher
Laura Sanborn
Laurel Przybylski
Leonhardt Wille
Levi Cai
liilscootscoot
Louis O'Neill
luna
Mary Truland
monoirre
Natalie Banach
Nathan Wright
Nicolette Ray
Noreen Herrington
Osbaldo Olvera
Pamela Parker
Rena G
Richard Shalumov
Rick Wong
Robert Amling
Robert Warner
Roberta K Wright
Sarah Khalida Mohamad
Sayantan Dasgupta
Sharon Merritt
Shelley Pearson Cranshaw
Silvan Wendland
Sonia Tanlimco
SueEllen McCann
Supernovabetty
Syniurge
Tea Torvinen
TierZoo
Titania Juang
Trae Wright
Two Box Fish
WhatzGames

---+ Follow KQED Science and Deep Look:

Patreon: https://www.patreon.com/deeplook
Instagram: https://www.instagram.com/kqedscience/
Twitter: https://www.twitter.com/kqedscience
KQED Science on kqed.org: http://www.kqed.org/science
Facebook Watch: https://www.facebook.com/DeepLookPBS/

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is also supported by the National Science Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Fuhs Family Foundation, Campaign 21 and the members of KQED.

Post your comment

Comments

Be the first to comment









RSS