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A school of bigeye trevally (Caranx sexfasciatus), Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia
A profusion of hard and soft corals on Sebayur Island, Komodo National Park, Flores Sea, Indonesia, Southeast Asia, Asia
Playful California sea lion (Zalophus californianus), underwater at Los Islotes, Baja California Sur, Mexico, North America
California gray whale calf (Eschrichtius robustus) underwater, San Ignacio Lagoon, Baja California Sur, Mexico, North America
Humpback whale (Megaptera novaeangliae), mother and calf underwater, Ningaloo Reef, Western Australia, Australia, Pacific
Adult green sea turtle (Chelonia mydas), feeding on algae near Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
An adult broadclub cuttlefish (Sepia latimanus), off the reef on Bangka Island, near Manado, Indonesia, Southeast Asia
Adult whitetip reef shark (Triaenodon obesus) swimming in Puerto Egas, Santiago Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Adult California gray whale (Eschrictius robustus), spy-hopping in San Ignacio Lagoon, Baja California, Mexico, North America
Various soft and hard corals with tropical fish underwater on the island of Misool, Raja Ampat, on Papua, Indonesia
Adult killer whale (Orcinus orca) surfacing with kelp on its flukes in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America
Bangka (boat) over coral, Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Clown Anemonefish, Indonesia.
Anker's whip coral shrimp, Cebu, Philippines.
Lizardfish eating a dragonet, Anilao, Philippines.
Beautiful soft coral colonies grow on a healthy coral reef in Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.
Detail of a stony coral (Galaxea sp.) growing in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A large roughtail stingray (Dasyatis centroura) rests on the seafloor near Turneffe Atoll, Belize. This species is found throughout much of the Atlantic near reefs.
A hermit crab crawls across a reef in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.
An adult male green sea turtle, Chelonia mydas, swims in the dark waters near a reef in Wakatobi National Park, Indonesia.
A pair of vibrant nudibranchs, Nembrotha kubaryana, mate on a coral reef in the remote, tropical islands of Raja Ampat, Indonesia.
A beautiful bouquet of tunicates and cnidarians 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.
Healthy corals and other invertebrates thrive on a reef in Sulawesi, Indonesia.
Beautiful mushroom coral and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.
Vibrant soft corals, Dendronephthya sp., thrive among the islands of Raja Ampat, Indonesia.
A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea. This part of eastern Indonesia is home to part of the world's greatest marine biodiversity.
Panamic cushion stars (Pentaceraster cumingi), gather on the sea floor, Sea of Cortez.
A trio of rays swim down a sandy gulch in the Indian Ocean, Maldives.
A giant manta ray (Mobula birostris) soars by under the sun, Socorro Island, Mexico.
Antarctic tern (Sterna vittata), feeding in the Enterprise Islands, Antarctica, Southern Ocean, Polar Regions
Adult female sea otter (Enhydra lutris kenyoni) swimming in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America
Adult sea otter (Enhydra lutris kenyoni) mother with her pup on her chest in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America
Sea urchins just caught and opened showing the edible cores (uni), Perna inlet, Palmizana, St Clement island, Hell's Islands (Pakleni), Hvar city, Hvar island, Croatia, Southeast Europe
An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America
An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America
An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America
Adult Dall's porpoise (Phocoenoides dalli) surfacing with characteristic rooster tail splash in Johnstone Strait, British Columbia, Canada, North America
A pod of killer whales (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America
Adult bull killer whale (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America
A pod of killer whales (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America
A view of a nuclear powered submarine in the industrial and militarized Russian seaport city of Murmansk, Murmansk Oblast, Russia, Arctic, Europe
Curious walrus (Odobenus rosmarus rosmarus) near Apollo Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia
Humpback whale (Megaptera novaeangliae), surfacing off Half Moon Island in the South Shetland Island Group, Antarctica, Polar Regions
Common lionfish (Pterois miles) surrounded by snack food.
A hairy squat lobster (Lauriea siagiani), Anilao, Philippines.
Ceratosoma nudibranch, Anilao, Philippines.
Denise's pygmy seahorse (Hippocampus denise), Kimbe Bay, Papua New Guinea.
Common ghost goby (Pleurosicya mossambica), Kimbe Bay, Papua New Guinea.
A group of eagle rays (Myliobatidae) swimming in the Maldives.
Sea anemone, Bohol Sea, Philippines.
Beautiful tiger anemone colony, Bohol Sea, Philippines.
Underwater mermaid statue at Grand Cayman island.
White-eyed moray eel in Malaysia.
Manatee with calf in Crystal River, Florida.
Whale shark in Isla Mujeres, Mexico.
Rockmover wrasse in Raja Ampat, Indonesia.
Shrimp on bubble coral, Indonesia.
Clownfish in green anemone, Indonesia.
Clownfish in purple tip anemone, Australia.
Arrow crab on a sea fan, Belize.
Guadalupe fur seals (Arctocephalus townsendi), underwater on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Adult black-legged kittiwakes (Rissa tridactyla) feeding at the base of a glacier in the Svalbard Archipelago, Norway, Arctic, Europe
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Schooling yellow-tailed surgeonfish (Prionurus punctatus), underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) feeding underwater in the Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle ray (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle ray (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle ray (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Adult green sea turtle (Chelonia mydas agassizii) underwater in the Galapagos Island Archipelago, 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
Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, 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
Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, 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
Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, 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
Galapagos sea lion pup (Zalophus wollebaeki) underwater playing with a lobster molt in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Snorkelers with Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Snorkeler with Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Snorkeler with Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lions (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lions (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lion (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America