Why Do Wild Chimpanzees Throw Stones At Trees? : 13.7: Cosmos And Culture : NPR

Anthropologist Barbara J. King explores new research on wild apes who throw stones at trees and cache them to use again — a behavior not seen and documented before and that some say may be ritual.

Source: Why Do Wild Chimpanzees Throw Stones At Trees? : 13.7: Cosmos And Culture : NPR

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