Most of us associate echolocation with bats. These amazing creatures are able to chirp at frequencies beyond the limit of our hearing, and they use the reflected sound to map the world around them. It ...

What is echolocation? Find out in this episode of Science Trek. Bats emit a high pitch squeak to help them find food. It’s called echolocation. Humans have copied bats and use sound waves too. Learn ...

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Toothed whales – like dolphins and belugas – might live in the ocean, but they have some big things in common with cave-dwelling bats. They’re all mammals that live in dark places and use echolocation ...

For years, a small number of people who are blind have used echolocation, by making a clicking sound with their mouths and listening for the reflection of the sound to judge their surroundings. Now, ...

It's now well-established that bats can develop a mental picture of their environment using echolocation. But we're still figuring out what that means—how bats take the echoes of their own ...

It’s well understood that spiders have poor eyesight and thus sense the vibrations in their webs whenever prey (like a fly) gets caught; the web serves as an extension of their sensory system. But ...

Daniel Kish has been blind since he was a baby but that hasn't stopped him living an incredibly active life that includes hiking and mountain-biking. To do this, he has perfected a form of human ...

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...

Aya Goldshtein, Omer Mazar, and Yossi Yovel have spent many evenings standing outside bat caves. Even so, seeing thousands of bats erupting out of a cave and flapping into the night, sometimes in ...