Orangutans Got Suspiciously Close to Inventing Stone Tools in New Zoo Experiments

Captive orangutans can use stone tools without minimal direction from humans, researchers reported today. Besides an affirmation of orangutan

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Norway ,Kristiansand ,Vest Agder ,Zurich ,Züsz ,Switzerland , ,University Of Lausanne ,University Of Zurich ,Kristiansand Zoo ,United Kingdom ,Alba Motes Rodrigo ,Sofia Forss ,Current Biology ,