Territorial aggressions and trespasses pay off among primates -- ScienceDaily

Territorial boundary patrolling by chimpanzees is a striking example of group-level cooperation displayed by our closest primate relatives.

Chimpanzees patrol in groups for the same reason wolves hunt in packs, because what they can achieve working together far exceeds the returns of more...

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https://skpsoft.com/animal/territorial-aggressions-and-trespasses-pay-off-among-primates-sciencedaily/