Endangered Species: Deer, Butterflies And Other Animals That You Never Knew Might Go Extinct

03/18/2013 04:21 pm ET

Thousands of animal species are listed in the Endangered Species Act, but we found a few that you wouldn't expect to find on the brink of extinction. From household pets to garden pests, here are animals currently listed as endangered or threatened in the United States and around the world.

Surprising Animals That May Go Extinct
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