Monkeys make 'tools' in a similar way to our ancestors: Discovery raises doubts over human archaeological record
Wild monkeys have been seen deliberately breaking flakes off stones in much the same way as prehistoric humans.
While our ancestors realised the flakes could be used as scraping and cutting implements, it seems the monkeys were attempting to extract minerals.
But the discovery could shed light on how early humans and their forbears first hit on the secret to making stone tools.
It also raises the possibility that some of the ancient tools attributed to human ancestors were created by monkeys.
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