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A dirty looking cidarid sea urchin on a dead bamboo coral branch

Description

A dirty looking cidarid sea urchin on a dead bamboo coral branch. The seaurchin is a living habitat for small hydroids and barnacles. Why has thisurchin climbed up a dead coral bush?

Credit

NOAA Office of Ocean Exploration and Research, 2015 Hohonu Moana

Display Date

20150829T213318Z

Location

Hawaii, Keahole, Kona Coast

Collection

Voyage to Inner Space
Ocean Exploration Collection
Modern Expeditions
2015 Hohonu Moana