Many species of slugs have evolved over millions of years in different parts of the world, and some even made their way to new places, like North America. Only 40 types of slugs are found in North America, so it’s only natural to be curious about these animals, as they typically go unnoticed by most people.

Psychedelic hedgehogs, purple pineapples, living strawberries—these tiny creatures show off their big personalities off the Australian coast. Imagine dragons—or go for a dive in the Pacific Ocean...

19. Purple Mediterranean Sea Slug. Latin name: Flabellina affinis; Habitat: Parts of the Atlantic Ocean off the coast of Europe, as well as in the Mediterranean Sea; Size: About 2″ long; Diet: Hydrozoa (very small, predatory marine animals) in the Eudendrium genus

Nudibranchs, shell-less snails or sea slugs, are named for these tufted gills, as "nudibranch" comes from Latin and Greek words meaning "naked gills." They're known for their bright coloration, and this species, found in Western Pacific Ocean coral reefs, ranges from dark purple to …

Flabellinopsis iodinea, the Spanish shawl, is a species of aeolid nudibranch, a very colorful sea slug. This is a marine gastropod mollusk in the family Flabellinidae. This species is native to the west coast of North America and further south.

The rhinophore stalks and the base of the gills is an intense purple, the rhinophore clubs and the gills are orange yellow. Yep, that's our purple sea slug! Visit the Hypselodoris apolegma species page on the Sea Slug Forum for more information and photos, including feeding records, mating, and the egg mass of this species.

A very small nudibranch with striking violet/pinky-purple colouration, with white tips to the projections running along its back. Found around all British coasts. Did you know? All nudibranchs are sea slugs, but not all sea slugs are nudibranchs!

Hypselodoris bullockii is a medium-sized nudibranch which is usually identified by its purple or pink body colouring and bright orange rhinophores. This segment contains information about Hypselodoris bullockii sea slug, including where they live, what they eat, and how they reproduce.

Purple Sea Slug. Sea slugs are among the most beautiful creatures in the sea. Known also as nudibranchs, they are found in an almost endless assortment of shapes, sizes, and colors. Their bright color patterns are serve as a warning to predators that they taste bad. Some nudibranchs are even poisonous.