IN THE coral-rich waters off Japan, scientists have discovered a tiny creature that looks more like a cartoon character than ...

Why it's awesome: These tiny marine creatures are probably better known by their nickname, "Shaun the Sheep" sea slugs, because of their uncanny resemblance to the iconic TV character. The adorable ...

At first glance, the lettuce sea slug (Elysia crispata) looks like a leafy underwater alien. But what’s hiding inside its frilly green body is far more fascinating than its salad-like appearance.

Blue dragon sea slugs. Glaucus atlanticus. Floating sapphires. Call these curiously cute little creatures whatever you’d like—just don’t call them your friend. They won’t love you back, and it’s a ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Sea slugs don’t shy away from the fish, crabs, sea turtles, or ...

It might look like something you'd find in an alien salad, but this bizarre sea slug can actually steal body parts from other organisms and use their powers for itself. The lettuce sea slug (Elysia ...

Unlike their shelled relatives, which can tuck in and hide from predators and environmental factors, sea slugs are just out ...