Chimpanzees drum with regular rhythm when they beat on tree trunks, a new study shows. Chimpanzees and humans last shared a common ancestor around 6 million years ago. Scientists suspect this ancient ...

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Chimpanzees drum with regular rhythm when they beat on tree trunks, a new study shows. Chimpanzees and humans last shared a common ancestor around 6 million years ago. Scientists suspect this ...

Chimpanzees Drum With Regular Rhythm When They Beat on Tree Trunks, a Form of Ancient Communication Chimpanzees drum with regular rhythm when they beat on tree trunks, a new study shows.