Across their 10,000 species, sea slugs sport striking colors, external gills, and even the ability to regrow a body from a severed head.

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 ...

A widespread species of sea slug was found living in water with high human impacts, and it may have medicinal qualities. Zen Summer via Unsplash Where do medications come from? Aspirin was derived ...