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Well-worn wins: Wild capuchin monkeys prefer stones with a proven track record of cracking nuts

A new study provides experimental evidence that wild capuchin monkeys use more than just physical cues when selecting stone tools; they also rely on visible signs that a stone has previously been used for this purpose.

Well-worn wins: Wild capuchin monkeys prefer stones with a proven track record of cracking nuts

We haven't written up this one. Phys.org has the full story — the link below goes straight to it.

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