Eastern Cougar Officially Declared Extinct | No Sightings for 80-Years The eastern cougarย has just been declared officially extinct. This Monday the eastern cougar was removed from the Endangered Species Act, of which it had been on since 1973, and declared extinct, reports iflscience.com. It is thought the last one was likely shot by hunters in 1938. The big cat (Puma concolor cougar) used to populate the forests, mountains, and grasslands […] Steven Agar | January 26, 2018 1 Comment