Reports of their venomous bites have been greatly exaggerated. Only about 15 percent of snakes have harmful venom. The number ...

Ian Ferreira of St. Lucia Birding Tours took to Facebook to post several images of the 5-foot Gaboon viper he encountered while out walking around St. Lucia in South Africa.

3. Russell's Viper Russell's viper. Dado Daniela / Getty Images The Russell's viper (Daboia russelii) is another deadly species, especially notorious in southern India and Southeast Asia.

Photos show the variation in coloring among Rahim’s eyelash pit vipers. One snake is a carrot color, another lemon yellow and a third is a mixture of seafoam green and dull brown.

It turns out that the Sahara sand viper, a foot-and-a-half-long venomous snake endemic to North Africa and the Sinai Peninsula, kind of likes to do the same thing.