ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY
Bell's sea urchin. Close-up of the shell, or test, of a bell's sea urchin (Salmacis belli). The sea urchin is an echinoderm, a relative of the star fish. Its exoskeleton test is covered in spines that protect it from predators. Bell's sea urchin is found in bays and lagoons of the Western Pacific. It feeds at night on algae that it scrapes from the surface of rocks. During the day it may cover itself in detritus for camouflage. Photographed at North Pass, Fakarava Atoll, French Polynesia, Pacific Ocean.
Model release not required. Property release not required.