When we think of slugs, we often picture slimy brown garden creatures. Under the sea, however, you can find slugs so colorful and unique they seem to have been transplanted from another planet ...

Twenty years ago, researchers saw what they called a "mystery mollusc." Now, they've finally described it in detail... but they're keeping the name.

It was the belle of the slime-ball. A fisherman — who happens to be a woman — elicited eeews and aaahs online after catching a mondo 11-pound sea slug off the coast of South Korea, which she captured ...

OAKLAND, Calif. (KGO) -- Giant purple blobs are invading East Bay beaches and waterways. They are not a danger to the people, but the slugs' big size is unusual. They are called sea hares and they can ...

Scientists in California found something extraordinary hiding in the ocean's midnight zone: a new species of glowing sea slug, according to The Guardian. The Monterey Bay Aquarium Research Institute ...

This colourful creature is no alien, but it is a long way from home. For the first time, the presence of a type of tropical sea slug has been confirmed by scientists in UK waters. Spurilla neapolitana ...