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Ancient Virus in Primate DNA Linked to Human-Chimp Brain Differences

Researchers at Lund University report that a family of ancient retroviruses that spread through primate genomes silenced brain-development genes in chimpanzees but not in humans, a possible explanation for why human brains differ.

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Oct 24, 5:27 AM 404media.co An Ancient Virus Explains Why the Human Brain Is Special
Oct 23, 11:00 AM phys.org An ancient virus in chimpanzee DNA switches off a gene that is active in humans