Once-Endangered Species Eventually Become Extinct. You'll Be Surprised How They Get There. - Page 2 of 62 - Wildlife Insider

Once-Endangered Species Eventually Become Extinct. You’ll Be Surprised How They Get There.

55. Eastern Cougar

Eastern cougars were knocked off the endangered species list in 2015. Despite valiant conservation efforts, the North American wildcats were declared completely extinct by wildlife conservation organizations.

The thinning out of their species was spurred by 19th century European settlers killing the predators to save their livestock.