Male Bornean Orangutan - Big Cheeks. Image by Eric Kilby from Somerville, MA, USA, CC BY-SA 2.0, Male Bornean Orangutan - Big Cheeks. Image by Eric Kilby from Somerville, MA, USA, CC BY-SA 2.0, ...
Young orangutans cannot learn their diets alone. A new study shows that watching others gives them the knowledge they need to survive.
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