Your Middle Ear Evolved From Fish Gills, Rare Chinese Fossils Prove - IFLScience

For a century scientists have hypothesized the mammalian middle ear evolved from an additional gill, which once sat in front of fishes' existing gill, but they've only just found the proof.

A study of 400 million-year-old fish fossils might seem an unexpected place to learn about human anatomy, but a paper in Frontiers in Ecology and Evolution claims to do just that. The authors argue t… [+2848 chars]

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