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Colourful Crinoids and Solt Corals at Hanging Gardens, Sipadan Island, Sabah, Malaysia
Featherstars perch on the edge of Gorgonian Sea Fans to feed in the current, Fiji, Pacific Ocean
Crowd of tropical reef fish including scissortail sergeants and grunts, Solomon Islands, Pacific Ocean
Featherstars perch on the edge of Gorgonian Sea Fans to feed in the current, Fiji, Pacific Ocean
Juvenile alligator in swampland (bayou) at Jean Lafitte National Historical Park and Preserve, south of New Orleans, Louisiana, USA
Coral reef and diver, off Sharm el Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Young girl swimming underwater
Young boy swimming underwater
Adult Peale's dolphin (Lagenorhynchus australis), underwater in shallow water near New Island, Falkland Islands, UK Overseas Protectorate, South America
Adult Commerson's dolphins (Cephalorhynchus commersonii), underwater at Carcass Island, Falkland Islands, UK Overseas Protectorate, South America
Adult Commerson's dolphin (Cephalorhynchus commersonii), underwater at Carcass Island, Falkland Islands, UK Overseas Protectorate, South America
Adult Peale's dolphin (Lagenorhynchus australis), underwater in shallow water near New Island, Falkland Islands, UK Overseas Protectorate, South America
Silhouette of dive boat with scuba divers at dive ladders, underwater view, Red Sea, Egypt, North Africa, Africa
Leopard torpedo ray (Electric ray) (Torpedo panthera), underside view, back-lit by the sun, Ras Mohammed National Park, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Underwater view of a coral encrusted lobster pot on sandy ocean floor, Ras Mohammed National Park, Red Sea, Egypt, North Africa, Africa
Small school of Indian mackerel (Rastrelliger kanagurta) in shallow water, Naama Bay, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Red Sea Anemone fish (Amphiprion bicinctus) and Bubble anemone (Entacmaea quadricolor), Naama Bay, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Spotted eagle ray (Aetobatis narinari) juvenile over sandy ocean floor, from above, Naama Bay, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Female scuba diver swimming underneath moored up dive boats, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Red Sea anemonefish pair (Amphiprion bicinctus) and Bubble anemone (Entacmaea quadricolor), Naama Bay, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Fakarawa, Tuamotu Archipelago, French Polynesia, Pacific Islands, Pacific
Tikehau, Tuamotu Archipelago, French Polynesia, Pacific Islands, Pacific
Tikehau, Tuamotu Archipelago, French Polynesia, Pacific Islands, Pacific
Shoal of sardines and scuba diver, Panagsama Beach, Moalboal, Cubu, The Visayas, Philippines, Southeast Asia, Asia
Large Nassau grouper, Bahamas, West Indies, Central America
Blue spotted ribbontail ray (Taeniura lemma) feed on small creatures under the sand in the Red Sea, Marsa Alam, Egypt, North Africa, Africa
Gray reef shark, Papua New Guinea, Pacific
A black and yellow ornate ghost pipefish (Solenostomus paradoxus) pictured against coral, Russell Islands, Solomon Islands, South Pacific, Pacific
A Coconut Octopus (Amphioctopus marginatus), a species that gathers coconut and mollusk shells for shelter, Lembeh Strait, Sulawesi, Indonesia, Southeast Asia, Asia
Close-up head on view of a hawksbill sea turtle (Eretmochelys imbricata), Bunaken National Park, Sulawesi, Indonesia, Southeast Asia, Asia
Close-up view of a lionfish (Pterois volitans), Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia
Hairy squat lobster (Lauriea siagiani) amongst a pink and orange colored sponge, Tulamben, Bali, Indonesia, Southeast Asia, Asia
Strap-weed filefish (Pseudomonacanthus macrurus), Tulamben, Bali, Indonesia, Southeast Asia, Asia
Sea nettle jellyfish (chrysaora fuscescens), Monterey Aquarium, California, United States of America, North America
Closeup of suckers and teeth rings on the tentacles of Humboldt (Jumbo) squid (Dosidicus gigas), Gulf of California, Baja California, Mexico, North America
Buccal cavity (mouth) and tentacles of Humboldt (Jumbo) squid (Dosidicus gigas), Gulf of California, Baja California, Mexico, North America
Humboldt (Jumbo) squid (Dosidicus gigas) swimming at night, Gulf of California, Baja California, Mexico, North America
Manta ray (Manta birostris) feeding on zooplankton by extending its cephalic lobes, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America
Whale shark (Rhincodon typus) feeding at the surface on zooplankton, mouth open, known as ram feeding, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America
Male manta ray with almost pure white ventral surface, may be a new species, for now known as Manta alfredi, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America
Eagle rays (Mobula hypostoma) common in this area and often seen feeding on zooplankton in large groups, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America
Scientist and whale shark (Rhincodon typus) feeding at the surface on zooplankton, mouth open, known as ram feeding, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America
Scientist free diving to make a photo identification of an individual manta ray (Manta birostris), Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America
Schooling Bigeye trevally (Caranx sexfasciatus) (jacks), Sipadan Island, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
The yellow moray eel (Gymnothorax melatremus) living in an artificial reef under an oil rig near Mabul Island, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Woman snorkeling in The Maldives, Indian Ocean, Asia
Juvenile cuttlefish (Sepia latimanus) less than 3 cm long shelters in the arms of a crinoid (featherstar), Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Great barracuda (Sphyraena barracuda) (giant barracuda) can grow up to 1.8 metres long, under pier, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Stonefish (Synanceia verrucosa) is extremely venomous, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Short dragonfish (sea moth) (Dragon sea moth) (Europegasus draconis), Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
False clown anenomefish (Amphiprion ocellaris) in the tentacles of its host anemone, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Leaf fish (Taenianotus Triacanthus), an ambush predator found amonst corals, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Giant Frogfish (Antennarius commersonii) can grow to 30 cm and is commonly encountered by divers, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Girl snorkeling in The Maldives, Indian Ocean, Asia
Girl snorkeling in The Maldives, Indian Ocean, Asia
Holding a stingray, Antigua, West Indies, Caribbean, Central America
Two sea lions off Floreana Island, Galapagos, Ecuador, South America
A moon jellyfish catches the sunlight, Antigua, Leeward Islands, West Indies, Caribbean, Central America
A freediver plays with a stingray, Antigua, West Indies, Caribbean, Central America
Curious flightless cormorant (Phalacrocorax harrisi) underwater at Tagus Cove, Isabela Island, Galapagos Islands, Ecuador, South America
Curious flightless cormorant (Phalacrocorax harrisi) underwater at Tagus Cove, Isabela Island, Galapagos Islands, Ecuador, South America
Adult green sea turtle (Chelonia mydas) underwater near Rabida Island, Galapagos Islands, Ecuador, South America
Dense swarms of juvenile squat lobster (Munida gregaria) off Akaroa, South Island, New Zealand, Pacific
Antarctic fur seal (Arctocephalus gazella) pup underwater in Stromness Bay, South Georgia, South Atlantic Ocean, Polar Regions
Unidentified large jellyfish in brash ice, Cierva Cove, Antarctica, Southern Ocean, Polar Regions
Hinge beak shrimp (Hinge beak prawn) (Rhynchocinetes sp.) emerges to feed at night, Matangi Island, Vanua Levu, Fiji, Pacific
Dusky anenomefish (Amphiprion melanomas) dominant female, lives in symbiotic association with its host anemone, Matangi Island, Vanua Levu, Fiji, Pacific
Snorkeler taking photo of urchin underwater off Maui, Hawaii, United States of America, Pacific
Green sea turtle (Chelonia mydas) underwater, Maui, Hawaii, United States of America, Pacific
Green sea turtle (Chelonia mydas) underwater, Maui, Hawaii, United States of America, Pacific
Bluespine unicorn fish (Naso unicornis) close-up, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Bluespotted Stingray (taeniura lymma) close-up top view, Naama Bay, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Tropical coral reef scene with a large table coral (Acropora pharaonis), Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Leopard shark, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
Crown of thorns starfish, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
Large cuttle fish at the Aquarium, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
Free spotted eel, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
Yellow tube sponge (Aplysina fistularis), Dominica, West Indies, Caribbean, Central America
Peppermint goby (Coryphopterus lipernes), Dominica, West Indies, Caribbean, Central America
King spotted snake eel (Ophichthus ophis), Dominica, West Indies, Caribbean, Central America
Western clown anemonefish (Amphiprion ocellaris) and sea anemone (Heteractis magnifica), Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Anemonefish (Amphiprion ocellaris) and sea anemone, Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Scorpionfish (Scorpaenopsis), Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Western clown anemonefish (Amphiprion ocellaris) and sea anemone (Heteractis magnifica), Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Hairy hermit crab (Aniculus elegans), Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Western clown anemonefish (Amphiprion ocellaris) and sea anemone (Heteractis magnifica), Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Moorish idol (Zanclus Ccornutus) caught in fishing net, Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Broadclub cuttlefish (Sepia Latimanus), Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Puffer Fish (Tetraodontidae), Southern Thailand, Andaman Sea, Indian Ocean, Asia
Allied cowry (Phenacovolva gracilis), Southern Thailand, Andaman Sea, Indian Ocean, Asia
Close-up of giant sea fan coral (Gorgonian fan coral) (Annella mollis), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Seaplane and couple snorkeling, Maldives, Indian Ocean, Asia
Seaplane and couple snorkeling, Maldives, Indian Ocean, Asia
Close-up of brain coral (Platygyra Daedalea), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
School of sergeant major fish (Abudefduf vaigiensis) over pristine coral reef, Jackson Reef, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Coral plates, lagoon and tropical island, Maldives, Indian Ocean, Asia
Scuba diver with False clown anenomefish (Amphiprion ocellaris) and anemone, Magnificent Sea Anemone (Heteractis magnifica), Cairns, Queensland, Australia, Pacific
Free diving snorkeller and sunburst on the Great Barrier Reef, UNESCO World Heritage Site, Cairns, Queensland, Australia, Pacific
Hard and soft coral landscape scenic at Thetford Reef on the Great Barrier Reef, UNESCO World Heritage Site, Cairns, Queensland, Australia, Pacific
Small fish hides in the venomous spines of a crown of thorns starfish (Acanthaster planci), Cairns, Queensland, Australia, Pacific