Six new species of western U.S. rattlesnakes have just been identified, according to a paper released this week.

Animal experts previously puzzled over the newly named rattlers, but did not then realize that the snakes represented unique species.

First Snake Crawled on Four Feet: Photos

“These snakes have been long been recognized by herpetologists as being demonstrably different, and in fact were designated as western rattlesnake subspecies in the first half of the 20th century,” co-author Michael Douglas, a professor of biological sciences at the University of Arkansas, said in a press release.

Source: Six New Rattlesnakes Discovered


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