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Crinoids cling to a large sponge on a healthy coral reef near the island of Sulawesi, Indonesia. This beautiful, tropical region is home to an incredible variety of marine life.
An unusual sea star (Linckia laevigata) clings to a diverse reef near the island of Bangka, Indonesia. This beautiful, tropical region is home to an incredible variety of marine life.
A sleek blue shark (Prionace glauca) cruises through the cold waters off Cape Cod, Massachusetts, in the Atlantic Ocean. These beautiful elasmobranchs are found throughout the world in both temperate and tropical seas and are a species listed as Near Thre
Colorful tunicates and soft corals grow on a reef in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A small red starfish clings to coralline algae in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
Christmas tree worms (Spirobranchus giganteus) grow on a coral reef in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A pink anemonefish (Amphiprion perideraion) swims among the tentacles of its host anemone in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A large mantis shrimp (Lysosquilla sp.) uses its excellent eyesight to scan its underwater environment 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.
A broadclub cuttlefish (Sepia latimanus) hovers above a beautiful coral reef in Komodo National Park, Indonesia.
A broadclub cuttlefish (Sepia latimanus) hovers above a beautiful coral reef in Komodo National Park, Indonesia.
A translucent shrimp (Vir philippinensis) crawls on bubble coral in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A Papuan scorpionfish (Scorpaenopsis papuensis) lies on a reef in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.
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 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.
Detail of an encrusting sponge growing on a coral reef in Komodo National Park, Indonesia.
A baby broadclub cuttlefish (Sepia latimanus) hovers in Lembeh Strait, Indonesia.
A beautiful feather duster worm, Bispira sp., grows on a coral reef in Alor, Indonesia.
A cluster of colorful tunicates grow on a coral reef amid the remote, tropical islands of Raja Ampat, Indonesia.
Small cardinalfish hover amid mangrove prop roots in a remote part of Raja Ampat, Indonesia.
An unidentified scorpionfish waits to ambush prey on a black sand slope 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.
Sunlight shines on beautiful corals thriving among the scenic islands of Raja Ampat, Indonesia.
A huge giant clam, Tridacna gigas, grows on a shallow coral reef amid the tropical islands of Raja Ampat, Indonesia.
A velvetfish, Paraploactis sp., waits for prey to swim by in Lembeh Strait, Indonesia.
A well-camouflaged tasselled wobbegong, Eucrossorhinus dasypogon, lies on the seafloor in Raja Ampat, Indonesia.
A huge whale shark, Rhincodon typus, swims in sunlit Indonesian waters. This massive yet harmless shark feeds on planktonic organisms and can sometimes be found swimming near fishing platforms due to the scent of fish.
Detail of a colonial tunicate growing on a coral reef in Komodo National Park, Indonesia.
A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.
A spotted porcelain crab, Neopetrolisthes maculatus, snuggles into its host anemone in Komodo National Park, Indonesia.
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 scorpionfish sits on a reef with a big frown, Red Sea, Egypt.
A pregnant pygmy seahorse clings to a frond of a gorgonian fan, Anilao, Philippines.
Schooling fish in vibrant yellow hover over a coral reef in Raja Ampat, Indonesia.
A large crocodile lurks on the bottom of the sea, Caribbean Sea, Mexico.
A crocodile stalking its prey, Caribbean Sea, Mexico.
A crocodile approaches slowly over the sand, Caribbean Sea, Mexico.
Crocodile under water, Caribbean Sea, Mexico.
An oceanic whitetip shark approaches from the blue waters around Elphinstone, Red Sea.
A larval lionfish floats in the open ocean as plankton, Anilao, Philippines.
A sea spider hunts in coral polyps for its dinner, Anilao, Philippines.
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.
Blacktip reef sharks patrol the shallow waters around a small island in Tahiti, French Polynesia.
A honeycomb eel emerges from its den and appears to smile, Maldives.
Curious walrus (Odobenus rosmarus rosmarus) near Apollo Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia
Sea anemone, Bohol Sea, Philippines.
Eye close-up on a crocodile flathead, New Ireland, Papua New Guinea.
Spotted porcelain crab, New Ireland, Papua New Guinea.
Male great white shark, Guadalupe Island, Mexico.
Underwater clownfish in anemone at Pulau Setaih Island, Natuna Archipelago, Indonesia, Southeast Asia, Asia
Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Purple stove-pipe sponge (Aplysina archeri), with boat in background, Curacao.
A red, white and yellow Christmas tree worm (Spirobranchus giganteus), on coral, Curacao.
Goldentail moray eel (Gymnothorax miliaris), in coral reef, Curacao.
Chain moray eel (Echidna catenata), in coral reef, Curacao.
A green sea turtle (Chelonia mydas) in the sea grass, Saint Croix, U.S. Virgin Islands.
The shell of a green sea turtle (Chelonia mydas) swimming to the surface, Saint Croix, U.S. Virgin Islands.
The face of a green sea turtle (Chelonia mydas), Saint Croix, U.S. Virgin Islands.
Headshot of a seaweed blenny (Parablennius marmoreus).
Christmas tree worms (Spirobranchus giganteus) on brain coral, Saint Croix, U.S. Virgin Islands.
Head of a goldentail moray eel (Gymnothorax miliaris).
Lined seahorse (Hippocampus erectus).
Comb jelly in blackwater dive at night, West Palm Beach, Florida.
Tiger shark swimming over sand, Tiger Beach, Bahamas.
Green sea turtle with remora on back, Tiger Beach, Bahamas.
Great hammerhead shark turning, Tiger Beach, Bahamas.
Grean sea turtle with reflection in surface, Tiger Beach, Bahamas.
Green sea turtle swimming on the ocean floor, Tiger Beach, Bahamas.
Garibaldi fish on black background, Tiger Beach, Bahamas.
Great hammerhead shark and tiger shark, Tiger Beach, Bahamas.
Great hammerhead shark, Tiger Beach, Bahamas.
Front view of a tiger shark, Tiger Beach, Bahamas.
Reef shark, Tiger Beach, Bahamas.
Front view of a tiger shark, Tiger Beach, Bahamas.
Scuba divers interacting with a pair of tiger sharks, Tiger Beach, Bahamas.
Great hammerhead shark with mouth open, Tiger Beach, Bahamas.
Two sheephead (Semicossyphus pulcher) In a kelp forest, Catalina Island, California.
A Caribbean reef squid on a deepwater night dive in West Palm Beach, Florida.
A starfish with spiny sea urchins at Quadra Island, British Columbia in Canada.
Great hammerhead shark with mouth open, Tiger Beach, Bahamas.
A Caribbean reef squid on a deepwater night dive in West Palm Beach, Florida.
An oceanic whitetip shark (C. longimanus) and surface reflections at Cat Island in the Bahamas.
A boat captain watches an oceanic whitetip shark below at Cat Island in the Bahamas.
A giant oceanic manta ray (Mobula birostris) with attached remoras at San Benedicto island in Mexico.
A hawksbill sea turtle (Eretmochelys imbricata) feeds on sponge and an angelfish follows for scraps in Cozumel, Mexico.
A ribbon eel (Rhinomuraena quaesita) in Indonesia.
A Caribbean reef shark (Carcharhinus perezi) in the Turks and Caicos.
A mahi mahi fish (Coryphaena hippurus) at Cat Island in the Bahamas.
A large orange frogfish at Cocos Island in Costa Rica.
A reef manta ray (Mobula alfredi) feeding at night in Hawaii.
A scalloped hammerhead shark (Sphyrna lewini) at Socorros Island in Mexico.
A diver shines a light in on a cavern filled with glassy sweepers (Pempheris schomburgkii) at Molasses Reef in Key Largo, Florida.
Two squat anemone shrimp (Thor amboinensis) in Curacao.
A diver has a close encounter with an oceanic whitetip shark (Carcharhinus longimanus) at Cat Island in the Bahamas.
Golden cuttlefish, Lembeh Strait, Indonesia.
Arrow Crab close-up, West Palm Beach, Florida.
A pair of Christmas tree worms in Cozumel, Mexico.
Snowflake moray eel (Echidna nebulosa) in Costa Rica.
Snowflake moray eel (Echidna nebulosa) in Costa Rica.