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A banded pipefish hovers above the substrait where it lives, Anilao, Philippines.
A young sea lion plays under the an oil rig platform, Southern California.
A reef squid hovers in mid-water, Anilao, Philippines.
A pod of four dolphins swim playfully near a popular coral reef in the Red Sea.
An orangethroat pike blenny (Chaenopsis alepidota), displays its colors in hopes of attracting a mate, Sea of Cortez.
A lionfish hovers over a coral reef as the sun sets, Raja Ampat, Indonesia.
A hawksbill turtle rests on a coral reef, Raja Ampat, Indonesia.
A tiny hard coral crab can be found burrowing in between the polyps of the coral, Anilao, Philippines.
A snail about the size of a coin generally lives under the sand but comes out at night to feed, Anilao, Philippines.
A painted frog fish stalks its prey blending in with sponges that are also the same color, Anilao, Philippines.
A school of yellow snapper hovers close to a coral reef, Maldives.
A nurse shark swims along a reef with a school of yellow snapper, Maldives.
A lionfish poses on a coral reef, Red Sea.
A coral bommie in the Red Sea at Yolanda Reef is full of anthias fish.
A male yellow barred jawfish (Opistognathus randalli), broods eggs in its mouth, Anilao, Philippines.
Antarctic tern (Sterna vittata), feeding in the Enterprise Islands, Antarctica, Southern Ocean, Polar Regions
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 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
Curious walrus (Odobenus rosmarus rosmarus) near Apollo Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia
Spotted porcelain crab, New Ireland, Papua New Guinea.
A young graysby (Cephalopholis cruentata) in an azure vase sponge, Little Cayman Island.
False clown anemonefish hide in their anemone in West Papua, Indonesia.
Orangutan Crab on bubble coral, Indonesia.
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) swimming 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
Adult Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, 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
A myriad of hard and soft corals, as well as tropical reef fish on the healthy reef near Volivoli Resort on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals, as well as tropical reef fish at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals, as well as tropical reef fish at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
Wreck of a C-53 Skytrooper, which went down on February 26, 1942 in Vansittart Bay, Kimberley, Western Australia, Australia, Pacific
Diving and snorkling area, Punta Perdiz near Playa Giron, Bay of Pigs, Matanzas Province, Cuba, West Indies, Caribbean, Central America
Galapagos fur seal (Arctocephalus galapagoensis) hauled out on lava flow in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
AI generated image of a Large anaconda swimming under water
By-the-wind sailor (Velella velella), held in a hand without stinging just outside Newport Beach, California, United States of America, North America
Haenyeo women, famous for diving into their eighties and holding their breath for up to two minutes, free-diving for seafood and crustaceans, Jeju Island, South Korea, Asia
Haenyeo women, famous for diving into their eighties and holding their breath for up to two minutes, free-diving for seafood and crustaceans, Jeju Island, South Korea, Asia
Adult California gray whale (Eschrictius robustus), spy-hopping in San Ignacio Lagoon, Baja California, Mexico, North America
The shell of a green sea turtle (Chelonia mydas) swimming to the surface, Saint Croix, U.S. Virgin Islands.
Headshot of a seaweed blenny (Parablennius marmoreus).
Comb jelly in blackwater dive at night, West Palm Beach, Florida.
Front view of a tiger shark, Tiger Beach, Bahamas.
A ribbon eel (Rhinomuraena quaesita) in Indonesia.
A Caribbean reef shark (Carcharhinus perezi) in the Turks and Caicos.
A diver shines a light in on a cavern filled with glassy sweepers (Pempheris schomburgkii) at Molasses Reef in Key Largo, Florida.
Arrow Crab close-up, West Palm Beach, Florida.
Snowflake moray eel (Echidna nebulosa) in Costa Rica.
A colorful reef scene with sunburst at Cozumel, Mexico.
A loggerhead sea turtle off the coast of North Carolina.
Sunrays shining on a Garibaldi damselfish, Catalina Island, California.
A hawksbill sea turtle resting under a reef in Cozumel, Mexico.
Kelp forest with school of fish, Catalina Island, California.
Oceanic whitetip shark with dorsal fin reflection, Cat Island, Bahamas.
Manta ray gliding through sunburst, San Benedicto Island, Mexico.
Close encounter with an oceanic whitetip shark, Cat Island, Bahamas.
Rays of light shining above an oceanic whitetip shark in Cat Island, Bahamas.
Close-up view of an angry spotted moray eel, West Palm Beach, Florida.
Multiple christmas tree worms, Curacao.
Spotted cleaner shrimp on pink tipped anemone, Curacao.
Spiral coral whip on black background.
Close-up view of a gray angelfish, Grand Cayman.
Toothless green moray eel, Nassau, The Bahamas.
Hawksbill sea turtle, Nassau, The Bahamas.
School of silversides form shapes in the tunnels at Eden Rock, Grand Cayman.
Hawksbill sea turtle eating, Castle Wall, Grand Cayman.
Sea fan on the colorful reefs of Komodo, Indonesia.
Soft corals in the colorful reefs of the Banda Sea, Indonesia.
Snorkeler exploring heart-shaped reef in Banda Sea, Indonesia.
Soft coral in the reef at Komodo, Indonesia.
Soft coral in the reef at Komodo, Indonesia.
Soft coral in the reef at Komodo, Indonesia.
Snorkeler exploring starfish in lagoon in Tioman Island, Malaysia.
A Sheepshead looks on as a pair of Blue Angelfish appear to be confused on which direction to go but each are feeding on different parts of coral and algae covered jetty rocks at St. Andrew Bay channel wall in Panama City Beach, Florida.
A scuba diver swims through an underwater field of tape grass leading away from the Blue Springs cave in Merritts Mill Pond in Marianna, Florida.
A technical cave diver using a diver propulsion vehicle (DPV) to dive into the Blue Springs state park cave system near Marianna, Florida.
A Peninsula Cooter turtle (Pseudemys peninsularis) looking up and positioned on the sandy bottom of the Morrison Springs cavern at 80 feet deep in the fresh clearwaters of the State Park near Red Bay, Florida.
An adult American Eel (Anguilla rostrata) prowls along the edge of the Morrison Springs cavern at 85 feet deep watching over the adolescent eels in the clear freshwaters of the state park near Red Bay, Florida.
A Whitetip Reef Shark laying on the bottom in the sand and looking up at the above approaching photographer in the clear South Pacific ocean off Likuri Island, Fiji.
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 Crown Jellyfish (Netrostoma setouchina) gently floating through South Pacific ocean waters off the coast of Tavarua Island, Fiji.
Pink Anemonefish (Amphiprion perideraion) appear to be on lookout to protect their purple anemone home in the clear and warm ocean waters of Papua New Guinea.
A Hi Utsuri koi fish swims over the rocky bottom of the clear freshwater of Vortex Spring shoreline in Ponce De Leon, Florida.
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 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 large spotted pufferfish swims in for a closer look at the photogrpher's camera 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.
Trumpetfish (Aulostomus maculatus) close-up of head, Atlantic Ocean, Key Largo, Florida.
A Neon Goby (Gobiosoma oceanops) takes a look outside its hole in the live boulder star coral (Montastraea annularis), Key Largo, Florida.
A large Goliath Grouper, Epinephelus itajara, effortlessly floats by and over the City of Washington shipwreck in about 60 feet of water off the coast of Key Largo, Florida.
Spotted grouper, Beqa Lagoon, Fiji.
Gymnodoris ceylonica nudibranch, Beqa Lagoon, Fiji.
Gymnodoris ceylonica nudibranch, Beqa Lagoon, Fiji.