GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Blue-green chromis (Chromis viridis) over branching coral. This species of damselfish inhabits reefs in the tropical Indo-Pacific region, from the eastern Indian Ocean to the Pacific islands. They flee to the safety of the coral branches at the slightest hint of danger. Photographed at Bunaken National Marine Park, North Sulawesi, Indonesia.
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