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)
The Eastern Cougar will be officially listed as extinct — almost 80 years after last sighting | The Independent | The Independent
Extinct puma, cougar may never have existed in South Carolina
Puma | The Nature Conservancy
The Eastern Cougar Extinction - Conservation Articles & Blogs - CJ
Eastern Cougar "Extinction" - Some Key Points - Dr. L. Mark Elbroch
Eastern cougar declared extinct by US government - CSMonitor.com
Puma | The Nature Conservancy
Eastern Puma declared officially extinct
Pumas, Panthers & Cougars: Facts About America's Big Cats | Live Science