This is a house... and a skeleton. But you probably know it as a snail shell. Snails are actually born with their shells when teeny tiny snails hatch out of their eggs, they already have a shell ...

Cuban snail (Polymita picta) world most beautiful land snails from Cuba , its known as "Painted Snails", rare, endangered and protected. Colorful snails, selective focus, copy space© Mark ...

This article was originally featured on The Conversation. Wander through your backyard or walk along a stream and it’s likely you’ll see a snail – small, squishy animals with shells on their backs.

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