Did this gene give modern human brains their edge?


More than 500,000 years ago, the ancestors of Neanderthals and modern humans were migrating around the world when a fateful genetic mutation caused some of their brains to suddenly improve. This mutation, researchers report in Science1, dramatically increased the number of brain cells in the hominins that preceded modern humans, probably giving them a cognitive advantage over their Neanderthal cou...

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