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Why do male chimpanzees throw rocks at the same trees for more than a decade? (phys.org)
submitted 5 months ago by to c/nottheonion@lemmy.world
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Walking through the savanna-woodland landscape of Boé National Park, Guinea-Bissau, you might encounter a tree covered in gnarled scars, with an accumulation of rocks surrounding its base.

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[–] 2 points 5 months ago

That's what I was thinking. Their forebears settled upon a favorite tree(s), it caught on in popularity, got passed down, and all that. I mean, it's as good a hypothesis as anything else, far as I know.

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