Local Mountain Lion Population Faces Precipitous Decline in Genetic Diversity Within 50 Years, Possible Extinction - Santa Monica Mountains National Recreation Area (U.S. National Park Service)
Eastern cougar - Wikipedia
The Eastern Cougar: Extinction or Myth – Sacandagalife.com
Florida Panther (Puma concolor coryi) | U.S. Fish & Wildlife Service
The Eastern Cougar Is Declared Extinct After Not Being Seen For 80 Years | IFLScience
Is Extinction a Path Forward for the Eastern Cougar? | MeatEater Conservation