KidzTube
Welcome
Login / Register

What Actually Makes Water Roll Off a Duck's Back? | 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   |   Chemistry   |   Environmental   |   Science
 Find Related Videos  added
71 Views

Description

Ducks and geese spend *a lot* of time preening their all-weather feathers. This obsessive grooming and a little styling wax from a hidden spot on their back side maintains the microscopic feather structure that keeps them warm and dry in frigid waters.

Please join our community on Patreon! https://www.patreon.com/deeplook
SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

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.

---
Summer is a great time to be a bird watcher in California. Ducks, geese, and many other species of aquatic birds come to California to breed, build nests and raise broods. If you go to your local pond right now, chances are good that you will see a mallard or Canada goose paddling along with a gaggle of its offspring in tow.

But watch for too long and you might find yourself wondering how do these birds stay warm and dry in the water?

Its a question that Jack Dumbacher, curator of ornithology and mammalogy at the California Academy of Sciences in San Francisco has been asked many times.

The secret to waterproof waterfowl, it turns out, lies in their feathers.

Aquatic bird feathers are really different than those of other birds, Dumbacher said.
---
What do ducks eat?
Ducks eat a lot of different things, from snails and tadpoles to grass and fruit. Some ducks specialize in a certain food like fish, while others are more general in their appetites.

Is it OK to feed bread to ducks?
Bread is like junk food to ducks and geese because it doesnt contain the nutrition they need from their typical diet in the wild. Foods like insects and aquatic plants contain more nutrients than carbohydrate-rich bread.

How do ducks float?
In addition to keeping them warm and helping them fly, ducks rely on their feathers to make them buoyant in water. Soft fuzzy down feathers keep a layer of warm air next to the birds skin. The larger vaned feathers create the contour of the duck and keep water out.

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

https://www.kqed.org/science/1968261/what-actually-makes-water-roll-off-a-ducks-back

---+ For more information:

This 2016 study by scientists at the University of Debrecen in Hungary, shows that aquatic birds like ducks and geese not only have feathers with denser, more tightly knit microstructures than their terrestrial counterparts, but they also have more of them.
https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2435.12820

---+ More Great Deep Look episodes:

What Makes Owls So Quiet and So Deadly? | Deep Look
https://www.youtube.com/watch?v=a68fIQzaDBY&t=39s

You've Heard of a Murder of Crows. How About a Crow Funeral? | Deep Look
https://www.youtube.com/watch?v=ixYVFZnNl6s&t=87s


---+ Shoutout!

Congratulations to the following fans on our Deep Look Community Tab for being the first five to correctly identify the the tiny hooks that keep feathers from splitting apart - barbicels!

Avi Harris
Mariana C
Pyxis
Pinkeu Panda0914
geraete 01

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

Alex
Alexandre Valdetaro
Aurora
Aurora Mitchell
Bill Cass
Blanca Vides
Burt Humburg
Caitlin McDonough
Carlos Carrasco
Chris B Emrick
Cindy McGill
Companion Cube
Cristen Rasmussen
Daisuke Goto
dane rosseter
Daniel Pang
Daniel Weinstein
David Deshpande
Dia
Dogman
Egg-Roll
Elizabeth Ann Ditz
Geidi Rodriguez
Gerardo Alfaro
Guillaume Morin
Joao Ascensao
Josh Kuroda
Joshua Murallon Robertson
Julie Smith Devous
Justin Bull
Kallie Moore
Karen Reynolds
Kelly Hong
Kevin Judge
Kristy Freeman
KW
Laura Sanborn
Laurel Przybylski
Leonhardt Wille
Levi Cai
Louis O'Neill
luna
Madhuri Yechuri
Mary Truland
Misia Clive
monoirre
Nathan Wright
Nicolette Ray
Noreen Herrington
Pamela Parker
Pauley
Rick Wong
Robert Amling
Roberta K Wright
Sayantan Dasgupta
Sharon Merritt
Shebastian Reyes
Shelley Pearson Cranshaw
Silvan Wendland
Sonia Tanlimco
Steven
SueEllen McCann
Supernovabetty
Syniurge
Tea Torvinen
Teresa Lavell
TierZoo
Titania Juang


---+ 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