Scientists Discover Our Hands Evolved From Our…Butts?

Today I Learned hands evolved from the same genetic blueprint as our butt.

360 million years ago, our fishy ancestors crawled onto land. Fins became feet, fins became hands, but scientists had no idea how until CRISPR. What they found was that hands weren’t built from scratch. Evolution recycled ancient DNA that had been quietly building our downstairs anatomy for half a billion years.

A region of DNA called 5DOM was originally responsible for building the cloaca, the single multipurpose openi