Bats Raised in Helium-Rich Air Reveal a Key to Echolocation

To test bats’ sense of the speed of sound, researchers put them in an atmosphere that alters it. No word on whether the helium made the bats sound funny.

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 vocalizations and use them to figure out the locations of objects.

Ars Technica

This story originally appeared on Ars Technica, a trusted source for technology news, tech policy analysis, reviews, and more. Ars is owned by WIRED’s parent company, Condé Nast.

In a paper released Monday, researchers provide evidence that bats engage in

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