Sharp stones

Untrained, ‘Unenculturated’ Orangutans Use Hammer, Sharp Stones to Access Food Reward; First Cutting Behavior Observed

Medicine & Technology Feb 17, 2022

Researchers recently tested a new tool used in two captive male orangutans also known as Pongo pygmaeus at Kristiansand Zoo in Norway to observe their behavior.

Sharp stones

Untrained, ‘Unenculturated’ Orangutans Use Hammer, Sharp Stones to Access Food Reward; First Cutting Behavior Observed

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