Скачати "Kangaroo Rats Are Furry, Spring-Loaded Ninjas | Deep Look"

Kangaroo rats use their exceptional hearing and powerful hind legs to jump clear of rattlesnakes — or even deliver a stunning kick in the face. 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. --- As they forage, kangaroo rats need to continually scan the surrounding sandy environment for any predators – foxes, owls, and snakes – that could be anywhere. Once a well-camouflaged sidewinder rattlesnake strikes, aiming its venomous fangs at the furry seed-harvester, the kangaroo rat springs up, and away from the snake’s deadly bite, kicking its powerful hind legs at the snake’s face, and using its long tail to twist itself in mid-air away from the snake to safety. Kangaroo have the uncanny ability to jump high at just the right moment. Biologists believe that this most likely comes from its keen hearing, which is 90 times more sensitive than human ears, allowing the rats to react in as little as 50 milliseconds. In addition to their finely-tuned ears, the desert kangaroo rats’ highly-evolved musculature generates lots of force very quickly, resulting in jumps almost ten times their body height. Muscles in kangaroo rats have a thick tendon, surrounded by large muscles, which translates directly to more power and a faster reaction time. With its powerful hind limbs, the kangaroo rat is also able to deliver a “black belt” kick to the jaw of the rattlesnake, sending the rattlesnake soaring to the ground, before landing away from the snake. ---+ Read the entire article on KQED Science: https://www.kqed.org/science/1957226/kangaroo-rats-are-furry-spring-loaded-ninjas --- Can a kangaroo rat survive without water in the desert? The body of the kangaroo rat has evolved to be especially adapted to their harsh dry desert environments, so they are able to get all of their water from seeds they eat. --- How high can a kangaroo rat jump? Some kangaroo rats are able to jump as high as 9 feet, or approximately 10 times their body height. --- Are kangaroo rats endangered? There are 20 existing species of kangaroo rats. Six of these species are considered threatened. The two species featured in our episode, the Merriam’s kangaroo rat (Dipodomys merriami) and desert kangaroo rat (Dipodomys deserti) are not endangered, and relatively common in the desert areas they are found. ---+ For more amazing slow motion videos of kangaroo rats and rattlesnakes, visit our friends at: https://www.ninjarat.org/ ---+ Shoutout! 🏆Congratulations 🏆to these fans on our YouTube community tab who identified the special parts in a kangaroo rats' skull that make their hearing so exceptional... the tympanic or auditory bullae: Lights, Camera, Ants Rohit Kumar Reddy Reddy Eric Fung Hotaru otakuman706 ---+ Thank you to our Top Patreon Supporters ($10+ per month)! 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 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 John King Johnnyonnyful Josh Kuroda Joshua Murallon Robertson Justin Bull Kallie Moore Karen Reynolds Katherine Schick Kathleen R Jaroma Kendall Rasmussen Kristy Freeman KW Kyle Fisher Laura Sanborn Laurel Przybylski Leonhardt Wille Levi Cai Louis O'Neill luna Mary Truland monoirre Natalie Banach Nathan Wright Nicolette Ray Nikita Noreen Herrington Osbaldo Olvera Pamela Parker Richard Shalumov Rick Wong Robert Amling Robert Warner Roberta K Wright Sarah Khalida Mohamad Sayantan Dasgupta 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. #kangaroorat #rattlesnake #deeplook