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A pair of humpback whales (Megaptera novaeangliae), underwater on the Silver Bank, Dominican Republic, Greater Antilles, Caribbean, Central America
Adult olive-headed sea snake (Hydrophis major), swimming on Ningaloo Reef, Western Australia, Australia, Pacific
Whale shark (Rhincodon typus), underwater with snorkeler on Ningaloo Reef, Western Australia, Australia, Pacific
Whale shark (Rhincodon typus), underwater with snorkeler on Ningaloo Reef, Western Australia, Australia, Pacific
Adult whale shark (Rhincodon typus), underwater on Ningaloo Reef, Western Australia, Australia, Pacific
Adult reef manta ray (Mobula alfredi), underwater in Ningaloo Reef, Western Australia, Australia, Pacific
Whale shark (Rhincodon typus), underwater with snorkeler on Ningaloo Reef, Western Australia, Australia, Pacific
Whale shark (Rhincodon typus), underwater with snorkelers on Ningaloo Reef, Western Australia, Australia, Pacific
Whale shark (Rhincodon typus), underwater with snorkeler on Ningaloo Reef, Western Australia, Australia, Pacific
Adult whale shark (Rhincodon typus), underwater on Ningaloo Reef, Western Australia, Australia, Pacific
Adult reef manta ray (Mobula alfredi), underwater in Ningaloo Reef, Western Australia, Australia, Pacific
Adult reef manta ray (Mobula alfredi), underwater in Coral Bay, Western Australia, Australia, Pacific
Humpback whales (Megaptera novaeangliae), swimming underwater on Ningaloo Reef, Western Australia, Australia, Pacific
Humpback whale (Megaptera novaeangliae), adult underwater on Ningaloo Reef, Western Australia, Australia, Pacific
Humpback whale (Megaptera novaeangliae), mother and calf underwater, Ningaloo Reef, Western Australia, Australia, Pacific
Humpback whale (Megaptera novaeangliae), mother and calf underwater, Ningaloo Reef, Western Australia, Australia, Pacific
The flukes of an adult female sperm whale (Physeter macrocephalus) swimming underwater, Roseau, Dominica, Windward Islands, West Indies, Caribbean, Central America
The flukes of an adult female sperm whale (Physeter macrocephalus) swimming underwater, Roseau, Dominica, Windward Islands, West Indies, Caribbean, Central America
Killer whale pod (Orcinus orca), off Punta Colorada, Isla San Jose, Baja California Sur, Mexico, North America
Adult green sea turtle (Chelonia mydas), feeding on algae near Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
An adult bluestreak goby (Valenciennea strigata), on the reef off Kri Island, Raja Ampat, Indonesia, Southeast Asia
A school of striped catfish (Plotosus lineatus), off the reef on Bangka Island, near Manado, Indonesia, Southeast Asia
A school of round batfish (Platax orbicularis), off the reef on Bangka Island, near Manado, Indonesia, Southeast Asia
A school of bigeye trevally (Caranx sexfasciatus), Village Reef, Raja Ampat, Indonesia, Southeast Asia
A school of orbicular cardinalfish (Sphaeramia orbicularis), in the mangroves off Wohof Island, Raja Ampat, Indonesia, Southeast Asia
An adult snowflake moray eel (Echidna nebulosa), on the reef off Port Airboret, Raja Ampat, Indonesia, Southeast Asia
A school of striped eel catfish (Plotosus lineatus), swimming on the reef off Bangka Island, Indonesia, Southeast Asia
A pair of spine-cheek clownfish (Amphiprion biaculeatus), Pulau Gam night snorkel off Wohof Island, Raja Ampat, Indonesia, Southeast Asia
A pair of spine-cheek clownfish (Amphiprion biaculeatus), tucked into an anemone off Wohof Island, Raja Ampat, Indonesia, Southeast Asia
A school of jointed razorfish (Aeoliscus strigatus), in their usual head down formation, off Bangka Island, Indonesia, Southeast Asia, Asia
A school of jointed razorfish (Aeoliscus strigatus) in their usual head down formation, off Bangka Island, Indonesia, Southeast Asia, Asia
A school of razor surgeonfish (Prionurus laticlavius), on the reef at Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
An adult Galapagos bullhead shark (Heterodontus quoyi), Buccaneer Cove, Santiago Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Killer whale pod (Orcinus orca), off Punta Colorada, Isla San Jose, Baja California Sur, Mexico, North America
Killer whale pod (Orcinus orca), off Punta Colorada, Isla San Jose, Baja California Sur, Mexico, North America
Adult tiger shark, Galeocerdo cuvier, underwater in the AuAu Channel, Hawaii, USA. Pacific Ocean.
A curious cow calf and escort humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
A curious cow calf and escort humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
A curious cow calf and escort humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
A curious cow calf and escort humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
A curious cow calf and escort humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
A curious cow and calf humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
A curious cow and calf humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
A curious cow and calf humpback whale, Megaptera novaeangliae, underwater in the AuAu Channel, Hawaii, USA.
California gray whale, Eschrichtius robustus, calf underwater in San Ignacio Lagoon, Baja California Sur, Mexico.
California sea lions, Zalophus californianus, with photographer underwater at Los Islotes, Baja California Sur, Mexico.
California sea lion, Zalophus californianus, playing underwater at Los Islotes, Baja California Sur, Mexico.
California sea lion, Zalophus californianus, playing underwater at Los Islotes, Baja California Sur, Mexico.
California sea lions, Zalophus californianus, playing underwater at Los Islotes, Baja California Sur, Mexico.
California sea lions, Zalophus californianus, playing underwater at Los Islotes, Baja California Sur, Mexico.
California sea lion, Zalophus californianus, playing underwater at Los Islotes, Baja California Sur, Mexico.
An adult peacock mantis (Odontodactylus scyllarus), in the Equator Islands, Raja Ampat, Indonesia, Southeast Asia, Asia
An adult peacock mantis (Odontodactylus scyllarus), in the Equator Islands, Raja Ampat, Indonesia, Southeast Asia, Asia
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
Bangka (boat) over coral, Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia
Above and below photo in the crystal clear water in the shallow reefs off Wayag Bay, Raja Ampat, Indonesia, Southeast Asia, Asia
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Underwater photo taken during the Hol Chan Marine Reserve, Shark Ray Alley and Coral Garden Snorkelling Tour, Belize District, Belize
Captive giant arapaima, Arapaima gigas, underwater at the Dallas Rescue Center in Iquitos, Amazon, Peru.
A pair of mandarinfish mating, Cebu, Philippines.
Black Sea Nettle, type of jelly fish, Monterey Aquarium, Monterey, California, United States of America, North America
An adult specklefin grouper ( Epinephelus ongus, off Port Airboret, Raja Ampat, Indonesia, Southeast Asia, Asia
False clownfish (Amphiprion ocellaris) swim near their host anemone in Alor, Indonesia. This remote region is known for its beautiful reefs and spectacular marine biodiversity.
Forest-covered limestone islands surround a gorgeous lagoon in a remote part of Raja Ampat, Indonesia. This beautiful region is known as the heart of the Coral Triangle and is a popular destination for scuba divers and snorkelers.
A spotted eagle ray (Aetobatus narinari) swims over the deep, sandy seafloor near Cocos Island, Costa Rica. This remote, Pacific island is famous for its healthy fish and shark populations.
A tube anemone grows on a sandy seafloor in Komodo National Park, Indonesia. This tropical area in the western Pacific harbors an extraordinary array of marine organisms.
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 beautiful and healthy coral reef grows in Komodo National Park, Indonesia.
A pair of beautiful nudibranchs (Hypselodoris tryoni) crawl along the seafloor near Alor in the Lesser Sunda Islands of Indonesia.
Detail of a colorful giant clam (Tridacna maxima) growing on a reef near Alor in the Lesser Sunda Islands of Indonesia.
Detail of a coral colony in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.
A broadclub cuttlefish (Sepia latimanus) uses camouflage to blend into a shallow coral reef in Raja Ampat, Indonesia. This remote region is known as the heart of the Coral Triangle due to its extraordinary marine biodiversity.
Colorful reef fish, mainly Scalefin anthias (Pseudanthias squamipinnis), swim above a healthy reef in the Lesser Sunda Islands of Indonesia.
A beautiful coral colony (Heliopora sp.) grows in Komodo National Park, Indonesia.
Soft corals grow on the edge of a beautiful reef in the historic Banda Islands of eastern Indonesia.
A small, unidentified scorpionfish hides in a shallow seagrass meadow in the Banda Islands of eastern Indonesia.
Detail of the tentacles of a tube anemone growing on a coral reef near Alor in Indonesia.
Vibrant tunicates, sponges, hydroids, and echinoderms grow on a coral reef among the remote, tropical islands of Raja Ampat, Indonesia.
A large roughtail stingray, Dasyatis centroura, lays on the seagrass-covered seafloor of Turneffe Atoll off the coast of Belize. This reef is part of the massive Mesoamerican Reef System in the Caribbean Sea, the second largest barrier reef on Earth.
A beautiful soft coral colony, Dendronephthya sp., grows amid the remote, tropical islands of Raja Ampat, Indonesia.
A small, colorful goby sits on a coral colony amid the remote, tropical islands of Raja Ampat, Indonesia.
A beautiful coral reef thrives in a remote part of Raja Ampat, Indonesia.
A false clownfish, Amphiprion ocellaris, swims among the tentacles of its host anemone in Raja Ampat, Indonesia.
Vibrant soft corals, Dendronephthya sp., thrive among the islands of Raja Ampat, Indonesia.
Beautiful coral polyps grow close together in a vibrant colony amid the tropical islands of Raja Ampat, Indonesia.
A beautiful nudibranch, Chromodoris coi, crawls across the seafloor in Komodo National Park, Indonesia.
A vibrant and diverse coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by in Komodo National Park, Indonesia.
A healthy coral reef thrives in Komodo National Park, Indonesia.
A Nembrotha cristata nudibranch crawls over a tunicate.
Crinoids and soft corals cover this reef in Raja Ampat, Indonesia.