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9 of the world's most bizarre snakes

By: Bryan Nelson on Sept. 26, 2014, 9:21 a.m.
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Iwasaki's snail-eater

You can probably guess what this snake eats, but it is an even more specialized hunter than its name implies. Not only does it eat only snails, but due to its highly unusual asymmetric jaws, it is efficient only at feeding on snails with dextral (clockwise-coiled) shells. The extreme adaptation has its limits, though. Scientists believe that snails are beginning to evolve counter-clockwise-coiled shells to protect themselves.