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Beams of light descend through a wooden jetty in the Dampier Strait, Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.

A school of lined sweetlips, Plectorhinchus lineatus, swim above a healthy coral reef in Raja Ampat, Indonesia.

A hawksbill sea turtle, Eretmochelys imbricata, swims over a beautiful reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A magnificent sea anemone, Heteractis magnifica, grows on a reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A huge giant clam, Tridacna gigas, grows on a shallow coral reef amid the tropical islands of Raja Ampat, Indonesia.

A barred-fin moray eel, Gymnothorax zonipectus, is found on a coral reef in Komodo National Park, Indonesia.

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.

A bed of Sea Anemones and occasional hard corals, on a coral reef in Gaafu Dhaalu atoll, in the far south of the Maldives, Indian Ocean.

Clownfish (Amphiprion species) guarding their sea anemone home; on a coral reef in Gaafu Dhaalu atoll, in the far south of the Maldives, Indian Ocean.

A Ctenocella species octocoral sea fan, surrounded by an assortment of hard corals, on a coral reef in Gaafu Dhaalu atoll, in the far south of the Maldives, Indian Ocean.

Adult green sea turtles (Chelonia mydas agassizii) underwater off the west side of Isabela, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Pink anemonefish (Amphiprion perideraion) guard their anemone on a coral reef in the South Pacific ocean near Tavarua Island off the coast of Veti Levu, Fiji.

A Blackside Hawkfish (Paracirrhites forsteri) swims over the red tentacles of a sea fan in the warm clear waters off the coast of Likuri Island, Fiji.

A large Southern Stingray (Dasyatis americana), lays motionless covered in sand but ready to fly away with wing tips slightly elevated above the sand, alongside a coral reef in the Atlantic Ocean off the coast of Key Largo, Florida.

A Spotfin Butterflyfish (Chaetodon ocellatus) feeding off the coral reef in the Atlantic Ocean off the coast of Key Largo, Florida.

A Porkfish (Anisotremus virginicus) swims by sea plumes out from under a coral reef ledge in the Atlantic Ocean off the coast of Key Largo, Florida.

A Blue Parrotfish (Scarus coeruleus) swimming up after munching on the coral reef below in the Atlantic Ocean off the coast of Key Largo, Florida.

A Blue Chromis (Chromis cyanea) swims into the current to maintain station over a colorful reef in the Atlantic Ocean off the coast of Key Largo, Florida.

Schooling scalefin anthias fish (Pseudanthias squamipinnis) and beautiful soft corals of Beqa Lagoon, Fiji.

A school of orange basslets (Pseudanthias squamipinnis) on a healthy Fijian reef full of hard and soft corals, Fiji.

1 cm yellow tube polyp captured at 4.5x life size with what appears to be a small macroscopic Isopod feeding on it, Bonaire, Caribbean Netherlands.

A large group of purple tube sponge sits high on the reef, Bonaire, Caribbean Netherlands.The Hilma Hooker Shipwreck is visible in the background.

Pair of Chromodoris annae nudibranch with brilliant blue and yellow skirt, crawling over green and pink coral, Anilao, Batangas, Philippines.

Coral Reefs Monument at the waterfront of San Miguel de Cozumel, Cozumel Island, Quintana Roo State, Mexico

Coral Reefs Monument at the waterfront of San Miguel de Cozumel, Cozumel Island, Quintana Roo State, Mexico

Coral Reefs Monument at the waterfront of San Miguel de Cozumel, Cozumel Island, Quintana Roo State, Mexico

Coral Reefs Monument at the waterfront of San Miguel de Cozumel, Cozumel Island, Quintana Roo State, Mexico

Coral Reefs Monument at the waterfront of San Miguel de Cozumel, Cozumel Island, Quintana Roo State, Mexico

Kyphosus sectatrix seen during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

Kyphosus sectatrix seen during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

The sergeant major or pintano fish(Abudefduf saxatilis) seen during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

Underwater photo taken during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

Underwater photo taken during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

A myriad of hard and soft corals compete for space on the substrate of the snorkel site known as the Milky Way, Palau, Micronesia, Pacific

Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize

Horse-eye jacks (Caranx latus), schooling in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Horse-eye jacks (Caranx latus), schooling in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize