A frozen wolf pup’s last meal has unlocked a stunning Ice Age secret. Scientists have recovered a complete woolly rhinoceros genome from muscle tissue preserved inside the stomach of a wolf that lived 14,500 years ago—a discovery once thought impossible.

Even more surprising, the DNA suggests the woolly rhino wasn’t fading from genetic weakness before extinction. So what really caused its sudden disappearance? This rare glimpse into prehistory is changing what we thought we knew about extinction, survival, and life at the edge of the last Ice Age.