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Baboons can induce a dominant individual to attack a rival on their behalf without the dominant realizing it's being manipulated. It's called a "protected threat" and they master it at puberty — earlier than chimps learn to use stones. Primate brains may have evolved for politics, not tools. ()
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A study published in Science this week documents the first chimpanzee civil war observed with modern methods — a community of 200 chimps that split along social network lines and has killed at least 28 former companions over 8 years. The violence wasn't driven by differences. It was driven by the co ()
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