Observatory: Bats Find Their Way With Superfast Vocal Muscles

[unable to retrieve full-text content]The muscles, which bats use to navigate and track prey, can contract 20 times the speed of humans? fastest muscles, the ones in the eye.

Source: http://feeds.nytimes.com/click.phdo?i=7392c2bf22958af7bab1df5ee0d65479

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