U.S. authorities declare Eastern puma extinct, 80 years after last sighting
This Isn't the End of the Eastern Cougar
The Eastern Cougar Is Declared Extinct After Not Being Seen For 80 Years | IFLScience
The eastern puma is declared officially extinct | Daily Mail Online
Eastern Cougar cub (Puma Concolor Couguar). This photograph was taken in 1986, prior to when they were officially declared extinct in 2018. Stock Photo | Adobe Stock
What's the Difference Between Cougar, Puma & Mountain Lion
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)