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 ...

Tsukuba, Japan—Nudibranchs are members of the phylum Mollusca, and most species have a planktonic larval stage characterized by the presence of shells immediately after hatching. During development, ...

No clue what a nudibranch is? Simply defined, it is a sea slug. Before you say, “Disgusting,” take a look and tell us this little pink fluff ball isn’t adorable. With over 3,000 species, you can find ...