Have Orangutans Started Using Stone Tools?

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Orangutans have been observed using tools, and some in captivity have also been taught to make stone flakes (sharp stone tools) and use them to gather food. However, a recent study shows that they still haven’t fully grasped the concept of tool use. Researchers left five orangutans individually with tools and packaged food that could only be opened with the tools and observed that not all of them used the tools for their intended purpose, even after being taught by handlers how to use them. Read full article here

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