MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY
Stocky anthias (Pseudanthias hypselosoma). This fish can reach a length of around 19 centimetres and is found in the Indo-Pacific region. It is often seen in large harems with many females and a single male. When the male dies, the dominant female changes sex to replace him. Photographed off Sangalaki Island, in the Sulawesi Sea, Indonesia.
Model release not required. Property release not required.