The eastern puma is declared officially extinct | Daily Mail Online
Cougar – International Society for Endangered Cats (ISEC) Canada
Eastern Cougar Now Extinct, U.S. Officials Say | Live Science
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 Puma declared officially extinct
Why Making The Eastern Puma Extinct Is A Good Thing - UNILAD