1387-817 - Black Anemonefish, Fiji.

1387-816 - Imperator Commensal Shrimp (Periclimenes imperator) on Eyed Sea Cucumber (Bohadschia argus), Fiji.

1387-740 - Common ghost goby (Pleurosicya mossambica), Kimbe Bay, Papua New Guinea.

1387-737 - Denise's pygmy seahorse (Hippocampus denise), Kimbe Bay, Papua New Guinea.

1387-721 - Eye detail of a juvenile crocodilefish, New Ireland, Papua New Guinea.

1387-720 - A pygmy goby, New Ireland, Papua New Guinea.

1387-719 - Spotted porcelain crab, New Ireland, Papua New Guinea.

1387-718 - Eye close-up on a crocodile flathead, New Ireland, Papua New Guinea.

1387-717 - Squat shrimp, Milne Bay, Papua New Guinea.

1387-716 - Caloria nudibranch, Milne Bay, Papua New Guinea.

1387-589 - A healthy coral reef thrives in Komodo National Park, Indonesia.

1387-590 - 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.

1387-588 - A healthy coral reef thrives in Komodo National Park, Indonesia.

1387-587 - 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.

1387-585 - A healthy coral reef thrives in Komodo National Park, Indonesia.

1387-586 - A healthy and beautiful coral reef thrives in shallow water in Raja Ampat, Indonesia.

1387-584 - A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea.

1387-582 - A healthy and beautiful coral reef thrives in shallow water in Raja Ampat, Indonesia.

1387-583 - A greater blue-ring octopus, Hapalochlaena lunulata, crawls across a coral reef in Komodo National Park, Indonesia. There are several blue-ring octopus species and all of them are extremely venomous.

1387-581 - 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.

1387-580 - Detail of a reef-building coral colony growing on a healthy reef in Komodo National Park, Indonesia.

1387-578 - A black manta ray, Mobula alfredi, visits a cleaning station on a reef in Komodo National Park, Indonesia.

1387-579 - A spotted porcelain crab, Neopetrolisthes maculatus, snuggles into its host anemone in Komodo National Park, Indonesia.

1387-577 - 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.

1387-576 - A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea.

1387-575 - 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.

1387-574 - Detail of a reef-building coral colony, Favia sp., growing on a healthy reef in Komodo National Park, Indonesia.

1387-572 - A healthy coral reef thrives in Komodo National Park, Indonesia.

1387-573 - A starry night octopus, Callistoctopus luteus, searches for prey on a reef flat at night in Raja Ampat, Indonesia.

1387-571 - Detail of a reef-building coral colony, Favia sp., growing on a healthy reef in Komodo National Park, Indonesia.

1387-570 - A bright yellow crinoid clings to a healthy coral reef near Alor, Indonesia.

1387-568 - A beautiful coral reef thrives in shallow water in Indonesia's Ceram Sea.

1387-569 - Detail of a colonial tunicate growing on a coral reef in Komodo National Park, Indonesia.

1387-567 - A broadclub cuttlefish, Sepia latimanus, hovers over a healthy reef on the remote island of Teun in Indonesia's Banda Sea.

1387-566 - A black manta ray, Mobula alfredi, visits a cleaning station on a reef in Komodo National Park, Indonesia.

1387-564 - A colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by in Komodo National Park, Indonesia.

1387-565 - A beautiful nudibranch, Chromodoris coi, crawls across the seafloor in Komodo National Park, Indonesia.

1387-563 - A barred-fin moray eel, Gymnothorax zonipectus, is found on a coral reef in Komodo National Park, Indonesia.

1387-562 - Detail of a bulbed anemone, Entacmaea quadricolor, on a coral reef in Komodo National Park, Indonesia.

1387-560 - A colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by in Komodo National Park, Indonesia.

1387-561 - 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.

1387-559 - 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.

1387-557 - Detail of a scorpionfish's face in Indonesia's Banda Sea.

1387-558 - A cute red-spotted blenny, Blenniella chrysospilos, looks out from its protective home on a coral reef in Indonesia. This combtooth blenny feeds on algae.

1387-556 - A small, well-camouflaged cuttlefish, Sepia sp., hovers on a rocky seafloor in the Banda Sea, Indonesia.

1387-555 - A well-camouflaged flasher scorpionfish, Scorpaenopsis macrochir, lies on a black sand slope just outside of Komodo National Park, Indonesia.

1387-554 - A beautiful nudibranch, Doriprismatica atromarginata, feeds on a reef in Indonesia's Banda Sea.

1387-552 - 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.

1387-553 - A colorful ornate ghost pipefish, Solenostomus paradoxus, hovers over a coral reef in Komodo National Park, Indonesia.

1387-551 - A well-camouflaged tasselled wobbegong, Eucrossorhinus dasypogon, lies on the seafloor in Raja Ampat, Indonesia.

1387-550 - A vibrant and diverse coral reef grows amid the tropical islands of Raja Ampat, Indonesia.

1387-549 - A sinuous soft coral grows in the shallows amid the tropical islands of Raja Ampat, Indonesia.

1387-548 - Orange soft corals carpet a shallow reef wall in Raja Ampat, Indonesia.

1387-547 - A colorful coral reef grows amid the tropical islands of Raja Ampat, Indonesia.

1387-546 - A large manta ray, Mobula alfredi, swimming along a reef drop off in Raja Ampat, Indonesia.

1387-545 - Beautiful corals and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.

1387-544 - Beautiful mushroom coral and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.

1387-543 - Beautiful corals and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.

1387-542 - A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.

1387-540 - A huge giant clam, Tridacna gigas, grows on a shallow coral reef amid the tropical islands of Raja Ampat, Indonesia.

1387-541 - A blue sea star, Linkia laevigata, clings to a healthy coral reef in Raja Ampat, Indonesia.

1387-539 - Humbug damselfish hover above protective corals in Raja Ampat, Indonesia.

1387-538 - A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.

1387-537 - A school of blue-green damselfish, Chromis viridis, hovers amid the tropical islands of Raja Ampat, Indonesia.

1387-536 - A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.

1387-535 - A beautiful coral reef grows amid the tropical islands of Raja Ampat, Indonesia.

1387-533 - A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.

1387-534 - A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.

1387-532 - A brightly colored soft coral adorns prop roots in a blue water mangrove forest in Raja Ampat, Indonesia.

1387-530 - A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.

1387-531 - A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.

1387-529 - Cardinalfish school around a colorful coral bommie growing on a reef in Raja Ampat, Indonesia.

1387-527 - A soft coral and large gorgonian thrive on a beautiful coral reef in Raja Ampat, Indonesia.

1387-528 - A brightly colored soft coral adorns a beautiful coral reef in Raja Ampat, Indonesia.

1387-526 - A thick school of yellow-striped scad swims below a jetty amid the tropical islands of Raja Ampat, Indonesia.

1387-525 - A beautiful, vibrant coral reef grows amid the tropical islands of Raja Ampat, Indonesia.

1387-523 - A juvenile painted spiny lobster, Panulirus versicolor, inhabits a crevice on a reef amid the tropical islands of Raja Ampat, Indonesia.

1387-524 - A colorful soft coral adorns a giant clam, Tridacna sp., growing on a healthy reef in Raja Ampat, Indonesia.

1387-522 - Beautiful coral polyps grow close together in a vibrant colony amid the tropical islands of Raja Ampat, Indonesia.

1387-485 - A hawksbill sea turtle, Eretmochelys imbricata, lays on a beautiful 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.

1387-484 - A hawksbill sea turtle, Eretmochelys imbricata, swims over a beautiful 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.

1387-471 - Aerial view of beautiful limestone islands scattered about the seascape in Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.

1387-470 - A school of lined sweetlips, Plectorhinchus lineatus, swim above a healthy coral reef in Raja Ampat, Indonesia.

1387-469 - Beams of light descend through a wooden jetty in the Dampier Strait, Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.

1387-468 - Healthy corals thrive along the edge of a mangrove forest in a remote part of Raja Ampat, Indonesia.

1387-467 - A beautiful coral reef grows in a remote part of Raja Ampat, Indonesia.

1387-466 - Healthy corals grow on the edge of a mangrove forest in a remote part of Raja Ampat, Indonesia.

1387-465 - Discarded plastic bags and other trash float above a shallow coral reef in Raja Ampat, Indonesia. Plastics have become a major pollution problem worldwide.

1387-464 - Bright beams of sunlight descend into the shadows of a blue water mangrove forest in Raja Ampat, Indonesia.

1387-463 - Small cardinalfish hover amid mangrove prop roots in a remote part of Raja Ampat, Indonesia.

1387-462 - A bright cup coral, Tubastrea sp., grows on a remote reef in Raja Ampat, Indonesia.

1387-461 - A banded sea krait, Laticauda colubrina, searches for prey on a coral reef in Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.

1387-460 - A false clownfish, Amphiprion ocellaris, swims among the tentacles of its host anemone in Raja Ampat, Indonesia.

1387-459 - A beautiful coral reef thrives in a remote part of Raja Ampat, Indonesia.

1387-458 - A school of silversides swims in the shallows in a remote part of Raja Ampat, Indonesia.

1387-457 - An ornate ghost pipefish, Solenostomus paradoxus, hovers near a hydroid on a reef in Raja Ampat, Indonesia.

1387-456 - Detail of coral polyps, Tubastrea sp., growing on a healthy reef in Raja Ampat, Indonesia.

1387-455 - Vibrant sea cucumbers, tunicates, hydroids, and other invertebrates cling to a reef in Raja Ampat, Indonesia.

1387-454 - Detail of coral polyps growing on a healthy reef in Raja Ampat, Indonesia.

1387-421 - An unidentified sea snake hunts in a shallow seagrass meadow in Wakatobi National Park, Indonesia.