Chimpanzees have been hurling rocks at the same trees for more than a decade
32
votes
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Chimpanzees are really into crystals
34 votes -
Playing with the kids is important work for chimpanzee mothers
7 votes -
Chimp moms play with their offspring through good times and bad
11 votes -
Promethean beasts - Far from being hardwired to flee fire, some animals use it to their own ends, helping us understand our own pyrocognition
8 votes