Have you ever found an empty shell on the beach with a tiny, perfectly round hole in it?

This could be the work of the moon snail. Snails can be kind of cute  because of their chubby, squishy appearance.

But what they lack in size, moon snails make up for by being voracious predators. Moon snails primarily feed on clams, but they also eat other kinds of mollusks, crabs, or even other moon snails. Snails have a feeding organ called a proboscis, kind of like the one a butterfly uses.

At the tip of the proboscis, moon snails have a radula, which is a structure lined with rows of tiny sharp teeth. They use their radula to bore a tiny hole in the shell of their prey, then a specialized gland releases digestive enzymes and hydrochloric acid through the proboscis into the body of its prey, which dissolve the soft tissue inside. And once their prey is reduced to a goopy mess of nutrients, the moon snail can then reach into the hole with its proboscis and slurp  up its hard-earned treat.