Environment
Primate archaeology: Digging up secrets of the monkey Stone Age
The discovery that chimps and some monkeys have a long history of making tools is forcing us to rethink our own cultural evolution
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The discovery that chimps and some monkeys have a long history of making tools is forcing us to rethink our own cultural evolution
The long-tailed macaques of Thailand already used stone hammers to split open shellfish, and now they have worked out how to use them to crack open nuts