These animals can hear everything - Jakob Christensen-Dalsgaard

Explore the extraordinary auditory adaptations in the animal kingdom, and find out which creature has the best hearing.

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The world is always abuzz with sounds, many of which human ears simply can’t hear. However, other species have extraordinary adaptations that grant them access to realms of sonic extremes. And some of them don’t even have ears— at least, not like we typically imagine. So, which is the best listener? Jakob Christensen-Dalsgaard explores the auditory capabilities of the animal kingdom.

Lesson by Jakob Christensen-Dalsgaard, directed by Joseph Clark.

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Thank you so much to our patrons for your support! Without you this video would not be possible! Brad Sullivan, Karen Ho, Niklas Frimberger, Hunter Manhart, Nathan Nguyen, Igor Stavchanskiy, James R DeVries, Grace Huo, Diana Huang, Chau Hong Diem, Orlellys Torre, Corheu, Thomas Mee, Maryann H McCrory, Blas Borde, John Hellmann, Poompak Meephian, Chuck Wofford, Adam Pagan, Wes Winn, Conder Shou, ntiger, Noname, Hansan Hu, David D, Mac Hyney, Keith Ellison, robin valero walters, Lynne Truesdale, Gatsby Dkdc, Matthew Neal, Denis Chon, Julian Oberhofer, Monte Carroll, Eddy, Jay M, Constantino Victor Delgado, Andrea Galvagni, Andrew Tweddle, Laurel-Ann Rice, Fernando A. Endo, Helen Lee, pam morgan, sarim haq, Gerardo Castro, Michel-Ange Hortegat, Enes Kirimi, Amaury BISIAUX, ND and Samyogita Hardikar.

[Doc_Fartens]

You can't say that scientists blindfold spiders and then not explore that in great depth. Please do a video on that!

[dinohall]

2:57 Glad to _hear_ some acknowledgment that dolphins are whales. A lot of people seem to be unaware of that fact. Law of monophyly for the win!

[PassionGodAlways]

🐍 4:35 sounded COOL with headphones 🎧 on! 🐍

[carolgb]

The bug in the ear was giving me Wrath of Khan feels…

[ronpach]

That movement from the close up to the spread of wings was really cool

[reginateng]

Being EARly has me smiling from ear to ear.

[jwr]

Always love the animations but the bee’s wings in the beginning were especially charming!

[thelibyanplzcomeback]

I mistook that title for some kind of riddle.

[jamiesprinkbob]

0:15 my dog looked up when the whistle played lol

[Aplauz]

I have a test involving sound tomorow, thanks for helping to remind myself

[sajanpreetsingh]

Every time I think the animators can't outdo themselves this time you guys 2 up me

[Glen_lastname]

I can hear best it's amazing how big brains and adequate everything else can lead to microphones that can out do any of these animal ears

[nikiTricoteuse]

4:22. Tim Storms: Hold my beer*. Just kidding though. I really enjoyed this video. Off to learn about sight now. 😊
*The lowest vocal note produced by a male is G -7 (0.189 Hz) and was achieved by Tim Storms (USA) at Citywalk Studios in Branson, Missouri, USA, on 30 March 2012. Timothy is the bass singer for the vocal group 'Pierce Arrow'. The attempt was witnessed by two college music professors and an acoustician. The frequency output of Timothy's voice was measured using Bruel & Kjaer equipment (low frequency microphone, precision sound analyser and laptop for post analysis).

[aerbendr]

i love the art style on this video, the owl especially looks so silly 😂❤bro really said .v.

[meg-k-waldren]

Did we have to have the vole kids be present for the snatch? 😒

[duyenphanthi]

This video has some really cool facts!

[Doxuanthinh]

Summary:

Jakob Christensen-Dalsgaard explains the incredible hearing abilities of various animals, highlighting how they surpass human capabilities and utilize unique adaptations to detect sounds beyond our range. He explains the basics of hearing, emphasizing how different structures vibrate in response to sound waves and transmit signals to the brain.

He then delves into examples of animals with exceptional hearing, starting with owls. Owls utilize their entire faces as funnels, have large and sensitive eardrums, and possess asymmetrically positioned ears to pinpoint sound direction. Their wings are also designed to reduce noise, allowing them to hunt silently.

Christensen-Dalsgaard then discusses animals with exceptionally large ears, like the long-eared jerboa and fennec foxes, which allow them to detect low-frequency sounds and regulate body temperature. Ogre-faced spiders, despite lacking ears, have sound-sensitive receptors on their legs, enabling them to catch prey even when blindfolded.

He also explores animals that can hear exceptionally high frequencies, like toothed whales and bats. They emit high-frequency sound pulses and use echolocation to navigate and hunt. He then introduces the greater wax moth, which holds the record for the highest frequency hearing among animals.

Finally, he discusses animals that are sensitive to low-frequency sounds, such as baleen whales, snakes, and Namib Desert golden moles. They use different methods, including their skulls, jawbones, and body orientation, to detect vibrations in the ground or water.

Takeaway Points:

Animals have vastly different hearing abilities: Their range of hearing surpasses humans, extending to frequencies beyond our perception.

Hearing adaptations are diverse: Animals employ unique structures and mechanisms to amplify, focus, and detect sound waves.

Hearing plays a crucial role in survival: Animals use their hearing for navigation, communication, hunting, and predator avoidance.

The world is full of sounds we can't hear: Animals can perceive a vast symphony of sounds that enrich their experience and shape their behavior.

Understanding animal hearing can enhance our appreciation of their world: By learning about their sensory experiences, we can gain a deeper understanding of their adaptations and ecological roles.

[CuriosityPilled]

Channels like this made me discover my own fascination with animating, and I put out 90h of work culminating in my first video the other day - if any one of you is dying to quench their unhinged animated storytelling thirst, perhaps stop by for a laugh 📌

[christiaancoetzee]

What has no mouth but must still scream

[Hallows]

All that for a tree-falling joke. WORTH IT!!!