Individual primates display variation in general intelligence

Scientists at Harvard University have shown, for the first time, that intelligence varies among individual monkeys within a species – in this case, the cotton-top tamarin. Testing for broad cognitive ability, the researchers identified high-, middle-, and low-performing monkeys, determined by a general intelligence score. General intelligence, or g, is a hallmark of human cognition, often described as similar to IQ. The effect of g in primates may offer insights into the evolution of human general intelligence. read more

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