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12 of the most interesting snails in the world

Hairy trumpet snail

Photo: H. Zell/Wikimedia Commons

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Hairy trumpet snail

The most sinister-looking shell in the snail world might belong to this intimidating gastropod, which has what appears to be spikes coming out of its shell. Though it does have a rather voracious appetite, the good news is that only vegetarian items are on the menu. The snail does have a habit of crawling out of its aquarium from time to time, however, which is kind of creepy.