David Fleetham / Lost fishing net covering coral reef, Philippines.

David Fleetham / Yellowspot trevally (Carangoides fulvoguttatus), Hawaii.

David Fleetham / Undulated moray eel (Gymnothorax meleagris) swimming over reef at night. Hawaii.

David Fleetham / Nudibranch (Nembrotha cristata) crawling through glassy Tunicates (Tunicata), Philippines.

David Fleetham / Surf crashing on the reef in Tubbataha National Park, Philippines.

David Fleetham / Schooling Anthias over coral reef, Philippines.

David Fleetham / Harlequin shrimp (Hymenocera elegan) and encrusting sponge, Hawaii.

David Fleetham / Randall's puffer (Torquigener randalli) named after Dr. John E. Randall, who has discovered and named more species of fish than any other living person. Hawaii.

David Fleetham / Miner's urchin shrimp (Gnathophylloides mineri) camouflaged on a Collector urchin (Pseudoboletia indiana) Hawaii.

David Fleetham / Bicolor anthias (Pseudanthias bicolor), Hawaii.

David Fleetham / Anemone shrimp (Thor amboinensis) on Giant sea anemone (Condylactis gigantea), Bonaire, the Netherlands Antilles, Caribbean.

David Fleetham / Sharknose goby (Elacatinus evelynae / Gobiosoma evelynae) cleaning Blue striped grunt (Haemulon sciurus) Bonaire, the Netherlands Antilles, Caribbean.

David Fleetham / Cleaning Goby (Gobiosoma genie) on hard coral, Bonaire, the Netherlands Antilles, Caribbean.

David Fleetham / Graysby (Epinephelus cruentatus) on coral reef off the island of Bonaire, the Netherlands Antilles, Caribbean.

David Fleetham / Motion blurred image of school of Brown striped snapper (Xenocys jessiae). Galapagos Islands, Ecuador.

David Fleetham / Dense school of Brown striped snapper (Xenocys jessiae), Galapagos Islands, Ecuador.

David Fleetham / Perfectly camouflaged Soft coral spider crab (Hoplophrys oatesii) on soft coral, Philippines.

David Fleetham / Hawaiian dascyllus (Dascyllus albisella), Hawaii.

David Fleetham / Bicolor anthias (Pseudanthias bicolor), Hawaii.

David Fleetham / Fragile file shell (Lima fragilis) swimming by flapping its valves together, Hawaii.

David Fleetham / Schooling Bluelined snapper (Lutjanus kasmira),Hawaii.

David Fleetham / Blacktongue unicornfish (Naso hexacanthus), Hawaii.

David Fleetham / Yellowfin soldierfish (Myripristis chryseres), Hawaii.

David Fleetham / Bluefin trevally / jack (Caranx melampygus), Hawaii.

David Fleetham / Chameleon parrotfish (Scarus chameleon) at night on Tubbataha Reef National Park, Philippines.

David Fleetham / Peach / Fairy anthias / basslet (Pseudanthias dispar) Tubbataha Reef National Park, Philippines.

David Fleetham / Schooling Bigeye jacks (Caranx sexfasciatus) passing Gorgonian coral (Gorgonia), Tubbataha Reef National Park, Philippines.

David Fleetham / Barred moray eel (Echidna polyzona), Maui, Hawaii.

David Fleetham / Opisthobranch (Melibe engeli) swimming, commonly found in beds of calcarious algae (Halimeda kanaloana) in Hawaii.

David Fleetham / Two barred goatfish (Parupeneus bifasciatus)showing the twin barbels under chin, Tubbataha Reef, Philippines.

David Fleetham / Many spotted sweetlips (Plectorhinchus chaetodonoides) on Tubbataha Reef, Philippines.

David Fleetham / Juvenile Brushtail tang (Zebrasoma scopas), Tubbataha Reef, Philippines.

David Fleetham / Whip corl dwarf goby (Bryaninops yongei) has eaten away the polyps of Wire coral, (Cirrhipathes anguina) on which it lives, in preparation for laying its eggs on this section. Tubbataha Reef, Philippi...

David Fleetham / Blue rock lobster (Panulirus femoristriga), Tubbatah Reef, Philippines.

David Fleetham / Whip coral (Ellisella cercidia) Tubbatah Reef, Philippines.

David Fleetham / Pink anemonefish (Amphiprion perideraion) above Magnificent sea anemone (Heteractis magnifica), Tubbataha Reef, Philippines.

David Fleetham / Rare deep water Gurnard lionfish (Parapterois heterura), Anilao, Philippines.

David Fleetham / Western / False clown anemonefish (Amphiprion ocellaris), Philippines.

David Fleetham / Dusky / Long-finned / Pinnate spadefish (Platax pinnatus), Philippines.

David Fleetham / Ornate ghost pipefish (Solenostomus paradoxus). Tubbataha Reef, Philippines.

David Fleetham / Branching arms of Basket star (Astroboa nuda) capturing passing Plankton from the waters around Tubbatah Reef, Philippines.

David Fleetham / Orange cup coral (Tubastraea coccinea) and Gorgonian coral (Gorgonia) feeding at night, Tubbataha Reef, Philippines.

David Fleetham / Black spotted pufferfish (Arothron nigropunctatus) resting on Gorgonian coral fan (Gorgonia), Philippines.

David Fleetham / Map pufferfish (Arothron mappa) getting gills cleaned by Cleaner wrasse (Labroides dimidiatus), Philippines.

David Fleetham / Longsnout flathead (Thysanophrys chiltonae) buried in seabed, Indonesia.

David Fleetham / Black-tip / banded sole (Soleichthys heterorhinos) moving over the seabed at night , Indonesia.

David Fleetham / Flashlightfish (Photoblepharon palpebratus) Indonesia.

David Fleetham / Wentletrap snail (Epitonium billeeanum) eating orange cup coral (Tubastraea coccinea), Indonesia.

David Fleetham / Giant sea bass (Stereolepis gigas), Catalina Island, California.

David Fleetham / Golden rabbitfish (Siganus guttatus) being cleaned by Holthuis cleaner shrimp (Periclimenes holthuisi), Mabul Island, Malaysia.

David Fleetham / Parasitic Copepod (Copepoda) on Whip coral goby (Bryaninops amplus), on whip coral, (Junceella fragilis), Indonesia.

David Fleetham / Whip coral goby (Bryaninops amplus) on Whip coral (Ellisella sp). Komodo, Indonesia.

David Fleetham / Warted egg cowries (Calpurnus verrucosus) are pictured on Leather coral (Sarcophyton sp), on which they feed. Komodo, Indonesia.

David Fleetham / Isopod (Isopoda) parasite on snout of Cornetfish (Fistularia commersonii), Komodo, Indonesia.

David Fleetham / Black garden eel (Heteroconger perissodon) in seabed, Komodo, Indonesia.

David Fleetham / Commensal / Periclimenes Shrimp (Periclimenes lanipes) on branching surface of Basketstar (Astoboa nuda). Komodo, Indonesia.

David Fleetham / Opening of Corallimorpharian / Disc anemone(Amplexidiscus fenestrafer), Komodo National Park, Indonesia.

David Fleetham / Commensal shrimp (Pliopontonia furtiva) camouflaged on Corallimorph (Pseudocorynactis sp), Komodo National Park, Indonesia.

David Fleetham / Pair of Ornate ghost pipefish (Solenostomus paradoxus), Komodo National Park, Indonesia.

David Fleetham / Pair of Ornate ghost pipefish (Solenostomus paradoxus), Komodo National Park, Indonesia.

David Fleetham / Pair of Ghostpipefish (Solenostomus cyanopterus)nearly impossible to find in the seagrass beds that they so perfectly imitate. Komodo National Park, Indonesia.

David Fleetham / Tozeuma Shrimp (Tozeuma armatum) camouflaged on coral reef, Komodo National Park, Indonesia.

David Fleetham / Tunicate (Didemnum molle), Bali, Tulumben, Indonesia.

David Fleetham / Juvenile female Lyretail anthias (Pseudanthias squamipinnis), Bali, Indonesia.

David Fleetham / Eye of Papuan cuttlefish (Sepia papuensis). Tulumben, Bali, Indonesia.

David Fleetham / Mating Papuan cuttlefish (Sepia papuensis) Tulumben, Bali, Indonesia.

David Fleetham / Flat needlefish (Ablennes hians) just below surface, Bonaire, Caribbean.

David Fleetham / Brittle star (Ophiothrix suesonii) on Stove Pipe Sponge (Aplysina archeri). Bonaire, Netherland Antilles, Caribbean.

David Fleetham / Cubera snapper (Lutjanus cyanopterus) with Goby (Gobius sp) in its mouth that is looking for parasites. Bonaire, Netherlands Antilles, Caribbean.

David Fleetham / Cubera snapper (Lutjanus cyanopterus), Bonaire, Netherlands Antilles, Caribbean.

David Fleetham / Queen parrotfish (Scarus vetula) feeding, terminal male or supermale phase. Bonaire, Netherlands Antilles, Caribbean.

David Fleetham / Redtail parrotfish (Sparisoma chrysopterum) female or initial male phase, Bonaire, Netherlands Antilles, Caribbean.

David Fleetham / Spotlight parrotfish (Sparisoma viride) terminal male phase, scraping algae off dead coral with beak-like fused teeth. Bonaire, Netherlands Antilles, Caribbean.

David Fleetham / Caribbean trumpetfish (Aulostomus maculatus) camouflaged among Tube sponges (Aplysina sp). Bonaire, Netherlands Antilles, Caribbean.

David Fleetham / Nudibranch (Elysia crispata) on sponge, Bonaire Island, Caribbean.

David Fleetham / Thousands of Silversides (Atherinidae) schooling together off Bonaire Island, Caribbean.

David Fleetham / Hawaiian pom-pom / boxer crab (Lybia edmondsoni)with anemones (Triactis sp) that it carries around holding with the claws and using them for defense, waving in front of the possible aggressor. An exam...

David Fleetham / Close look between the spines of Slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii.

David Fleetham / Blacktail snapper (Lutjanus fulvus), Hawaii.

David Fleetham / Tail of Long jawed squirrelfish (Sargocentron spiniferum), Hawaii.

David Fleetham / Bigeye emperor (Monotaxis grandoculis) hovering in midwater, Hawaii.

David Fleetham / Peacock grouper (Cephalopholis argus) and White mouthed moray eels (Gymnothorax meleagris) hunting together cooperatively, Hawaii.

David Fleetham / Spotfin squirrelfish (Neoniphon sammara) Hawaii.

David Fleetham / Bluefin jack / trevally (Caranx melampygus), Hawaii.

David Fleetham / Peacock sole (Pardachirus pavoninus) moving over the reef at night, Komodo, Indonesia.

David Fleetham / Black-tip sole (Soleichthys heterorhinos) swimming, Komodo, Indonesia.

David Fleetham / Black-tip sole (Soleichthys heterorhinos) on seabed, Komodo, Indonesia.

David Fleetham / Pebble crab (Leucosia pubescens) can bury itself completely in the sand to escape predators, Komodo, Indonesia.

David Fleetham / Giant / Star pufferfish (Arothron stellatus) opening gills to allow the Commensal / Periclimenes shrimp, (Periclimenes sp) to go inside in search of parasites, Bali, Indonesia.

David Fleetham / Adam's urchin / Zebra crab (Zebrida adamsii) carrying eggs under its body on a venomous Radiant sea urchin (Astropyga radiata). Rinca island, Komodo National Park, Indonesia.

David Fleetham / Camouflaged Weedy scorpionfish (Rhinopias frondosa), Komodo National Park, Indonesia.

David Fleetham / Pacific Sea Apple sea cucumber (Pseudocolochirus violaceus) feeds on passing plankton with feathery mouthparts, Komodo National Park, Indonesia.

David Fleetham / Juvenile Striped frogfish (Antennarius striatus), Komodo, Indonesia.

David Fleetham / Clark's anemonefish (Amphiprion clarkii) in sea anemone (Entacmaea quadricolor), Komodo, Indonesia

David Fleetham / Ornate ghost pipefish (Solenostomus paradoxus) and shrimp. Tulamben, Bali, Indonesia.

David Fleetham / Titan triggerfish (Balistoides viridescens) getting attention of four Scarlet cleaner shrimp (Lysmata amboinensis) off Tulamben, Bali, Indonesia.