What Makes Your Brain Different From a Neanderthal’s?


For their final experiment, the researchers set out to create a miniature Neanderthal-like brain. They started with a human embryonic stem cell, editing its TKTL1 gene so that it no longer had the human mutation. It instead carried the mutation found in our relatives, including Neanderthals, chimpanzees and other mammals. They then put the stem cell in a bath of chemicals that coaxed it to turn i...

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