All You Need to Know About Puma Spotting in Patagonia
The eastern puma is declared officially extinct | Daily Mail Online
Eastern Cougar "Extinction" - Some Key Points - Dr. L. Mark Elbroch
The Eastern Cougar Extinction - Conservation Articles & Blogs - CJ
Are Pumas extinct? - Quora
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 US cougar declared extinct
Over 3,000 Brazilian Animal and Plant Species Are Endangered or Vulnerable to Extinction - brazzil
What's the Difference: Cougar, Puma, Panther & Mountain Lion