New clues to woolly rhino extinction found in wolf’s stomach

Scientists found a piece of woolly rhino tissue in the stomach of this 14,400-year-old wolf pup. Genomic analysis of that rhino tissue and 2 other specimens indicate the species went extinct relatively fast. Image via Mietje Germonpré/ Stockholm University.

• Scientists found woolly rhino tissue inside the stomach of a 14,400-year-old frozen wolf pup in Siberia.
• Genomic analysis showed woolly rhinos stayed genetically healthy until a rapid population collapse near the end of the last Ice Age.