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Close-up view of a three color parrotfish (Scarus tricolor), coming in for a bite of hard coral, Fiji, South Pacific, Pacific

A cleaner shrimp (Lysmata amboinensis), inspects the teeth of an undulated moray eel, Hawaii, United States of America, Pacific, North America

An Atlantic bottlenose dolphin (Tursiops truncatus) head above water, United States of America, Pacific, North America

Spinner dolphins (Stenella longirostris) leap into the air at the same time, Hawaii, United States of America, Pacific, North America

Atlantic bottlenose dolphins (Tursiops truncatus), feeding on small fish, United States of America, North America

Bubble coral shrimp (Vir philippinensis) on bubble coral (Plerogyra sp.), Philippines, Southeast Asia, Asia

A blackspotted puffer (Arothron nigropunctatus) curled up on the reef for the night, Philippines, Southeast Asia, Asia

Endangered Florida manatee (Trichechus manatus latirostris), at Three Sisters Spring in Crystal River, Florida, United States of America, North America

A group of goose barnacles (Lepas anatifera) attached to a buoy off the Big Island of Hawaii, United States of America, Pacific, North America

Florida manatees (Trichechus manatus latirostris), gather at Three Sisters Springs in Crystal River, Florida, United States of America, North America

Grey reef sharks (Carcharhinus amblyrhynchos), at a controlled feeding of the island of Yap, Micronesia, Pacific

A female blacktip reef shark (Carcharhinus melanopterus), off the island of Yap, Micronesia, Pacific

Bigeye emperor (Monotaxis grandoculis), Maui, Hawaii, United States of America, Pacific, North America

A close-up of the underside of the crown-of-thorns starfish (Acanthaster planci), United States of America, North America

The tail of a humpback whale (Megaptera novaeangliae), off the coast of Lanai, Hawaii, United States of America, Pacific, North America

Alcyonaria coral with schooling anthias dominate this Fijian reef scene, Fiji, South Pacific, Pacific

Giant hermit crab (Petrochirus diogenes), off Singer Island, Florida, United States of America, North America

A plumed scorpionfish (Scorpaena grandicornis), off Singer Island in Florida, United States of America, North America

A young humpback whale (Megaptera novaeangliae), underwater, Hawaii, United States of America, Pacific, North America

Three squat anemone shrimp (Thor amboinensis), at the base of a tube anemone, Philippines, Southeast Asia, Asia

Close-up of a devil scorpionfish (Scorpaenopsis diabolus), Hawaii, United States of America, Pacific, North America

Mantle detail on a spondylus (Thorny Oyster shell) (Spondylus varians), Philippines, Southeast Asia, Asia

The Kona crab (Ranina ranina) (Spanner crab), Maui, Hawaii, United States of America, Pacific, North America

A garibaldi (Hypsypops rubicundus) in a forest of giant kelp off Catalina Island, California, United States of America, North America

Almaco jack (Seriola rivoliana), in the pen at a fish farm off The Big Island, Hawaii, United States of America, Pacific, North America

The male oval squid (Sepioteuthis lessoniana), can reach 14 inches in length, Hawaii, United States of America, Pacific, North America

A great white shark (Carcharodon carcharias), breaks the surface off Guadalupe Island, Mexico, North America

A spinner dolphin (Stenella longirostris) leaps into the air, Hawaii, United States of America, Pacific, North America

The graceful decorator crab (Oregonia gracilis), attaches organisms to its back, British Columbia, Canada, North America

A Galapagos shark (Carcharhinus galapagensis), breaching the surface, Hawaii, United States of America, Pacific, North America

A humpback whale (Megaptera novaeangliae), tail slapping the surface of the Pacific Ocean off Hawaii, United States of America, Pacific, North America

The very capable teeth in the jaw of a stout moray (Gymnothorax eurostus), Hawaii, United States of America, Pacific, North America

A close-up of the mouth of a whitemouth moray eel (Gymnothorax meleagris), showing its needle sharp teeth, United States of America, North America

A cleaner shrimp (Lysmata amboinensis) inspecting a honeycomb moray eel (Gymnothorax favageneus), Philippines, Southeast Asia, Asia

Endangered Florida manatee (Trichechus manatus latirostris), at Three Sisters Spring in Crystal River, Florida, United States of America, North America

A Bleeker's parrotfish (Chlorurus bleekeri), surrounded by a mucus bubble it secretes for protection, Fiji, South Pacific, Pacific

Snorkelers swim above a blue hole on Palau's barrier reef. This hole formed when sea level was much lower than it is today.

A beautiful coral reef grows near a set of limestone islands in Raja Ampat, Indonesia. This remote, equatorial region is known as the heart of the Coral Triangle. It is a popular destination for scuba divers and snorkelers.

A Japanese Jake seaplane, shot down during World War II, lies on the seafloor of Palau's lagoon. Many planes and dozens of large ships were sunk around Palau during the war.

A broadclub cuttlefish (Sepia latimanus) hovers above a beautiful coral reef in Komodo National Park, Indonesia.

A colorful and healthy coral reef thrives in shallow water in Raja Ampat, Indonesia. This remote region is known as the heart of the Coral Triangle due to its extraordinary marine biodiversity.

A beautiful Blue Velvet Head Shield sea slug (Chelidonura varians) crawls across a sandy seafloor near Alor in the Lesser Sunda Islands of Indonesia.

A cluster of colorful tunicates grow on a coral reef amid the remote, tropical islands of Raja Ampat, Indonesia.

Colorful chocolate chip starfish lie scattered on the floor of a seagrass meadow 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 well-camouflaged tasselled wobbegong, Eucrossorhinus dasypogon, lies on the seafloor in Raja Ampat, Indonesia.

Mother southern elephant seals (Mirounga leonina) posturing at breeding site at Peggotty Bluff on South Georgia Island, Polar Regions

Adult bull killer whale (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Weddell Seal (Leptonychotes weddellii), hauled out on ice at Half Moon Island, Antarctica, Southern Ocean, Polar Regions

Adult Commerson's dolphin (Cephalorhynchus commersonii), surfacing in Stanley Harbor in the Falkland Islands, South America

A hawksbill sea turtle (Eretmochelys imbricata) feeds on sponge and an angelfish follows for scraps in Cozumel, Mexico.

A Map Turtle (Graptemys geographica) surfaces for air in the clear blue waters of Morrison Springs, a state park in Northwest Florida. The calm glassy water reflects the bright colors of the turtle with it's head above the surface but it's body inches below the surface.

Hawksbill sea turtle (Eretmochelys imbricata), a critically endangered species, feeding on soft coral, side view, South Ari Atoll, Maldives.

Whale shark swimming under a boat, with sharp sunrays cutting through the water, Cenderawasih Bay, West Papua, Indonesia.