Eastern cougar declared extinct by US government - CSMonitor.com
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)
Why Making The Eastern Puma Extinct Is A Good Thing - UNILAD
Once Nearly Extinct, The Florida Panther Is Making A Comeback : NPR
The Eastern Puma Has Officially Been Pronounced Extinct! | Most endangered animals, Animals, Extinct animals