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9 of the world's most bizarre snakes

By: Bryan Nelson on Sept. 26, 2014, 9:21 a.m.
Cerastes gasperettii

Photo: reptiles4all/Shutterstock

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Desert horned viper

These snakes, which hail from Northern Africa and the Middle East, could be the reason the devil is often depicted with horns. The serpents' horns, which are modified scales, are retractable, allowing the snakes to burrow easily. Scientists aren't sure of the purpose of the horns, but they may help prevent the buildup of sand around the eyes.