Chimpanzee Intelligence Is Gene Dependent

As with people, some chimpanzees are smarter than others, and as with people, a lot of that variation in intelligence depends on the genes that individuals carry and pass on from one generation to the next. A new study found no effect of either sex or rearing history on the cognitive skills of chimpanzees. That is, chimpanzees raised by human caretakers performed no better on cognitive tests delivered to them by humans than did individuals raised by their chimpanzee mothers. read more

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