Yellowstone Had 23 Pure Bison Left — What a DNA Test Found 120 Years Later Was Impossible

Yellowstone Had 23 Pure Bison Left — What a DNA Test Found 120 Years Later Was Impossible

The American Wild

Yellowstone Had 23 Pure Bison Left — What a DNA Test Found 120 Years Later Was Impossible Yellowstone's bison are called the purest on Earth. In 2022, a DNA test proved that wasn't quite true, and the reason traces back to the 23 animals that saved the entire species. This is the story of the bison