The Eastern Cougar Is No More - The Lab World Group
The eastern puma is declared officially extinct | Daily Mail Online
Eastern Cougars Declared Extinct—But That Might Not be Bad
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
Over 3,000 Brazilian Animal and Plant Species Are Endangered or Vulnerable to Extinction - brazzil
Once Nearly Extinct, The Florida Panther Is Making A Comeback : NPR