The Pacific bun can grow up to a maximum length of 60cm. The body is oblong and laterally flat, and there are two shield-shaped bony plates on the caudal stalk, each with a keel. The head is small, and as it grows, the forehead in front of the eyes gradually protrudes to form a tumor-like protrusion, and the back will also bulge.

Learn how big Pacific bun horns can grow , and then take a look at its living habits. Pacific bunnies live in coral reef areas, usually singly or in small groups. Feeds mainly on leafy algae, fleshy algae and zooplankton.