More food helps orangutans learn better

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 (Image: Pixabay CC0)
(Image: Pixabay CC0)
The adage "necessity is the mother of invention" is often used to describe the origin from which our cultural development springs. After all, necessity in times of scarcity has forced humans to constantly invent new technologies that have driven the remarkable cumulative culture of our species. But an invention only becomes cultural when it is learned and spread by many people. In other words, the invention must be socially transmitted. But what forces drive social transmission? A long-term study of wild orangutans over 18 years suggests that the answer can be found in the ecological habitat and the corresponding food availability of an animal. ...
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