For horseshoe bats, wiggling ears and nose makes biosonar more informative|Health Consumer

Humans, and most other mammals, have just four muscles joining their ears to their head. Bats have more than 20, and they use them to execute a precise series of wiggles, swivels, and twitches.
“In one-tenth of a second, three times as fast as you can blink your eyes, the bats can…
Source: For horseshoe bats, wiggling ears and nose makes biosonar more informative

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