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. Snails are found in water, whether in salty oceans, rivers ...

Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

You’re in good company if you’ve combed the shoreline for shells, marveled at the glinting, microscopic pieces that make up the sand, or held a snail shell up to your ear listening for the ocean or ...

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.