A yellow aeolid nudibranch crawls across a blue rock surface on a reef in California.  Many nudibranchs have gills that look like a floral bloom like the white gills shown on the animal's posterior.

Royalty-free stock photo ID: 74808037

A yellow aeolid nudibranch crawls across a blue rock surface on a reef in California. Many nudibranchs have gills that look like a floral bloom like the white gills shown on the animal's posterior.