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Fruit bats are the only bats that can't (and never could) use echolocation. Now we're closer to knowing why

By Camilo López-Aguirre, PhD Candidate, UNSW
Laura A. B. Wilson, Senior Lecturer, Australian National University

Echolocation evolved multiple times in bats over millions of year. Yet the earliest bat ancestors probably didn't have this skill — or if they did, it was likely very primitive.

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