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DNA Unlocks Mystery of Extinct Giant Cave Lion
4 Jun
Summary
- Cave lions, distinct from modern lions, were larger apex predators.
- Genome research shows evolutionary lineage diverged 1.7 million years ago.
- Climate change and humans contributed to their extinction 14,000 years ago.
The cave lion, an extinct feline species that predated the modern lion, has been revealed through new genome research to be a distinct evolutionary lineage. These formidable cats, larger and more robust than today's lions, roamed across Eurasia and North America.
The study of ancient DNA, extracted from bones and teeth, indicates that the evolutionary paths of cave lions and modern lions diverged approximately 1.7 million years ago. Genetic differences adapted them to varied environments, with cave lions thriving in the frigid mammoth steppe ecosystem.
As apex predators, cave lions played a crucial ecological role, hunting large Ice Age megafauna. Their range occasionally overlapped with modern lions during colder periods, leading to sporadic interbreeding. Their eventual extinction around 14,000 years ago coincided with rapid climate shifts and growing human presence.
