Yellow-finned Dive Buddy
Photo and caption by Ana Guerra
A Yellowfin surgeonfish (Acanthurus xanthopterus) that wanted a closer look at the camera. Like all surgeonfish, the yellowfin surgeonfish have a pair of spines (or scalpels) at the base of their tail that can be extremely sharp.
Location: Palmyra Atoll National Wildlife Refuge, Central Pacific, USA