Endemic Galapagos Black Coral, Antipathes galapagensis, Cousins Rock, Santiago Island, Galapagos, Ecuador

A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.

An adult painted frogfish (Antennarius pictus) camouflaged in black on the reef off Bangka Island, Indonesia, Southeast Asia

Coral reef (Pocilopora sp.) and sun rays, Black Coral Island, Kitti Province, Pohnpei, Federated States of Micronesia, Caroline Islands, Micronesia, Pacific Ocean, Pacific

Coral reef and sun rays, Black Coral Island, Kitti Province, Pohnpei, Federated States of Micronesia, Caroline Islands, Micronesia, Pacific Ocean, Pacific

Red rope sponges (Aplysina caulifrons) on underwater cliff with precious black coral, Little Cayman Island, Cayman Islands, Caribbean

Red rope sponge and precious black coral tree, Little Cayman Island, Cayman Islands, Caribbean

Fringing reef at Black Coral island, Kitti Province, Pohnpei, Federated States of Micronesia, Caroline Islands, Micronesia, Pacific Ocean, Pacific

Split image of Black Coral island and coral reef, Pohnpei, Federated States of Micronesia, Caroline Islands, Micronesia, Pacific Ocean, Pacific

Red rope sponges (Aplysina caulifrons) on underwater cliff with precious black coral, Little Cayman Island, Cayman Islands, Caribbean

Coral reef and sun rays, Black Coral Island, Kitti Province, Pohnpei, Federated States of Micronesia, Caroline Islands, Micronesia, Pacific Ocean, Pacific

Red rope sponge and precious black coral tree, Little Cayman Island, Cayman Islands, Caribbean

Red rope sponge and precious black coral tree, Little Cayman Island, Cayman Islands, Caribbean

Sunrays illuminate a jellyfish, Mastigias sp., Jellyfish Lake, Kakaban Island, Berau, Kalimantan, Borneo, Indonesia, Pacific Ocean

Sunrays illuminate a jellyfish, Mastigias sp., Jellyfish Lake, Kakaban Island, Berau, Kalimantan, Borneo, Indonesia, Pacific Ocean

Clark's Anemonefish, Amphiprion clarkii, in pink bubble tip anemone, Sangeang Volcanic Island, Nusa Tenggara, Indonesia, Pacific Ocean

Caribbean Whiptail Stingray (Himantura Schmardae), Utila, Bay Islands, Honduras

A School Of Hawaiian Dascyllus (Dascyllus Albisella), A Hawaiian Endemic Fish, Over A Bleached Antler Coral (Pocillopora Eydouxi) Off The Kona Coast, Kona, Island Of Hawaii, Hawaii, United States Of America

Caribbean Whiptail Stingray (Himantura Schmardae), Utila, Bay Islands, Honduras

A young woman free diving with black triggerfish (Melichthys niger), Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

Two young women free diving with black triggerfish (Melichthys niger), Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

Slate pencil sea urchins (Heterocentrotus mammillatus) colour the foreground of this Hawaiian reef scene with a young woman free diving with black triggerfish (Melichthys niger), Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

Wire coral goby (Bryaninops yongei) on wire coral (Cirrhipathes sp.), a relative of black coral.

Male diver with sun over ocean surface, Island of Hawaii, Hawaii, United States of America