The hidden Denisovan gene that helped humans conquer a new world Ancient humans crossing the Bering Strait into the Americas carried more than tools and determination—they also carried a genetic legacy from Denisovans, an extinct human relative. A new study reveals that a mysterious gene called MUC19, inherited through interbreeding between Denisovans, Neanderthals, and humans, may have played a vital role in helping early Americans survive new diseases, foods, and environments.
https://www.sciencedaily.com/r....eleases/2025/08/2508