The Bailey-Matthews National Shell Museum's new exhibit, "Brilliant Colors of the Sea," features photographs of nudibranchs. Nudibranchs are shell-less marine mollusks known for their vibrant colors ...

Beachgoers in La Jolla, California were surprised to see a Spanish shawl nudibranch, a vibrant sea slug with purple and ...

The summer months bring low morning tides along the California coast, providing an opportunity to see one of the state’s most unusual inhabitants, sea slugs. Also called nudibranchs, many of these ...

At the end of the semester in the advanced invertebrate zoology course I took, my rather dry, boring professor made the only joke I remember him ever uttering. We had just finished the phylum ...

As the tide went out, the sea receded, leaving behind a shallow tide pool where an octopus was stranded. Australian photographer Gaetano Gargiulo gently placed his camera next to it, and the octopus ...

Nudibranchs are shell-less-molluscs. Mostly carnivorous, they come in a variety of colors and forms. Many of them have ‘cerata’ on their backs; these are horn-like, sometimes branched, protrusions ...

This week I am looking small at some of the slimiest animals in the Gulf of Maine, nudibranchs. A pretty name for an animal that is basically a slug. You heard me, nudibranchs are snails without a ...