When you consider animals that have a lot of teeth, sharks are likely to be the first ones that come to mind, since they can grow and shed thousands of teeth in their lifetime. However, as shocking as ...

The leaf sheep is such a precious sea slug. What you’re looking at in the photos is the leaf sheep’s eyes and mouth, as well as its cerata. The cerata are the leaflike appendages that cover the leaf ...

Eastern Emerald Elysia rely on the algae Vaucheria litorea to complete its development. The sea slug retains chloroplasts from the algae in the cells of its digestive tract. Here, the chloroplasts ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers have ...

Somewhere beneath tropical waves, a sea slug the size of a house cat pulls off a move that stops divers cold. Meet the ...

A green sea slug appears to be part animal, part plant. It's the first critter discovered to produce the plant pigment chlorophyll. The sneaky slugs seem to have stolen the genes that enable this ...

*Speaking of humans with viruses for brains, what the heck gives with a mollusc that can photosynthesize? No, it doesn't have algae on board, it IS a freaking algae plant. "SEATTLE — It’s easy being ...

The next time you head to the coast to enjoy the Tampa Bay waters, you may stumble upon a Pierce's Cyerce—a recently-discovered sea slug species that is being named after Sidney "Skip" Pierce, ...

Studying sea slugs in the group Sacoglossa can mean being on the receiving end of some very imaginative emails. Sidney K. Pierce, of the University of South Florida, retired a few years ago. “But to ...