Pascal Kobeh / Great white shark (Carcharodon carcharias) in open water, Guadalupe island, Mexico. Pacific Ocean.

Juergen Freund / Yellowtail fusilier (Caesio cuning) being cleaned by a Bluestreak cleaner wrasse (Labroides dimidiatus) Papua New Guinea.

Juergen Freund / Whitetip reef shark (Triaenodon obesus) at reef, West New Britain, Papua New Guinea.

Juergen Freund / Bignose unicornfish (Naso vlamingii) swimming past coral reef, West New Britain, Papua New Guinea.

Juergen Freund / Great barracuda (Sphyraena barracuda) West New Britain, Papua New Guinea

Juergen Freund / Schooling Blackfin barracuda (Sphyraena qenie) West New Britain, Papua New Guinea

Juergen Freund / Blue-ringed octopus (Hapalochlaena lunulata) swimming through water, Batangas, Philippines

Juergen Freund / Blue sea star on massive Boulder coral (Gardineroseris planulata) North Sulawesi, Indonesia. This coral species is normally found from the Red Sea to Central America, and is relatively uncommon in the...

Juergen Freund / Coral reef landscape with abundant whip corals, Blue sea stars and hard coral, North Sulawesi, Indonesia, October 2009.

Juergen Freund / Split level of snorkeler over coral reef on white sandy seabed contrasting with dry topside landscape in background, Komodo NP, Indonesia, August 2009. Model released.

Juergen Freund / Massive boulder / Cauliflower coral (Gardineroseris planulata) with blue sea star, Buyat Bay, Sulawesi, Indonesia, Indo-pacific.

Juergen Freund / Details of Orange elephant ear sponge (Agelas clathrodes) with crinoids / featherstars attached, Kimbe Bay, West New Britain, Papua New Guinea

Juergen Freund / View of sea surface through a Whip coral forest (Junceella sp) Kimbe Bay, West New Britain, Papua New Guinea

Juergen Freund / Detail of Emperor angelfish (Pomacanthus imperator) Bali, Indonesia, Indo-pacific

Juergen Freund / Nudibranch (Jorunna funebris) feeding on its preferred sponge, Kimbe Bay, West New Britain, Papua New Guinea

Juergen Freund / Great barracuda (Sphyraena barracuda) with Teira batfish (Platax teira) in background, Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Horsehoe crab (Tachypleus gigas) swimming on its back with gills creating the propulsion, Palawan, Philippines. Did you know? Horseshoe crabs are more closely related to spiders than crabs.

Juergen Freund / Silvertip reef shark (Carcharhinus albimarginatus) Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Longfin Bannerfish (Heniochus acuminatus) head on portrait, Bali, Indonesia, Indo-pacific

Juergen Freund / Schooling Yellowtail fusilier (Caesio cuning) Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / School of Yellow line scads (Selaroides leptolepis) and diver, Misool, Raja Ampat, West Papua, Indonesia, January 2010. Model released.

Juergen Freund / School of Yellow line scads (Selaroides leptolepis) Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Karst limestone formations rising out of the sea. Sunmalelen area, Raja Ampat, West Papua, Indonesia, January 2010

Juergen Freund / A large shoal of Lunar fusiliers (Caesio lunaris) blending in with the same blue of the water. Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / School of Yellow line scads (Selaroides leptolepis) hunted by Bluefin jacks (Caranx melampygus). Misool, Raja Ampat, West Papua, Indonesia,

Juergen Freund / Star shaped Pincushion / Pillow cushion starfish (Culcita novaeguinea), detail of the underbelly. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / School of Yellow line scads (Selaroides leptolepis). Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Star shaped Pincushion / Pillow cushion starfish (Culcita novaeguinea), detail of the underbelly. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / School of yellow line scads (Selaroides leptolepis) Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Tropical blue-ringed octopus (Hapalochlaena lunulata) hunting. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Baby green turtle (Chelonia mydas) hatchling in the shallows of the beach, swimming out to sea. Anano Island, Wakatobi, South Sulawesi, Indonesia, November

Juergen Freund / Coral trout / Leopard coral grouper (Plectropomus leopardus) mating behaviour. Males approach the females and display with their bodies and fins. Misool, Raja Ampat, West Papua, Indonesia,

Juergen Freund / Midnight snapper (Macolor macularis) juvenile swimming towards the camera. Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Shoal of Blue chromis (Chromis viridis) amongst hard coral with Cloudy Damselfish (Dascyllus carneus) Sipadan, Malaysia.

Juergen Freund / Blue linkia starfish (Linckia laevigata) pair attached to the dead part of coral, New Ireland, Papua New Guinea

Juergen Freund / Jewelmer Pearlfarm, cleaned Pearl oysters (Pinctada maxima) in hanging cage in the open sea, Palawan, Philippines, May 2009

Juergen Freund / Blue starfish shrimp (Periclimenes soror) on starfish, Kimbe Bay, Papua New Guinea, Indo-Pacific.

Juergen Freund / A small Necklace sea star (Fromia monilis) on larger Blue sea star (Linckia laevigata) Sipadan, Malaysia

Juergen Freund / Blue soft corals, Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Blue ribbon eel / Ribbon moray eel (Rhinomuraena quaesita). Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Schooling Yellow-ribbon sweetlips (Plectorhinchus polytaenia) surrounded by glassy sweepers (Pempheris schomburgki). North Raja Ampat, West Papua, Indonesia

Juergen Freund / Yellow-ribbon sweetlips (Plectorhinchus polytaenia) surrounded by dense shoal of glassy sweepers (Pempheris schomburgki). North Raja Ampat, West Papua, Indonesia

Juergen Freund / Leatherback turtle (Dermochelys coriacea) underwater. Kei islands, Indonesia, November

David Fleetham / Painted frogfish (Antennarius pictus) with first dorsal spine and lure extended to attract prey. Dumaguete, Philippines.

Alex Mustard / Longfin batfish (Platax teira) juvenile with parasitic isopod on dorsal fin. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocean.

Enrique Lopez-Tapia / Carcasses of Wildebeest (Connochaetes taurinus) that drowned while trying to cross the Mara River, Masai Mara Triangle.

Tim Laman / Butterflies puddling, including Graphium sarpedon, Delias sp, and Graphium aristeus Vogelkop Peninsula, West Papua.

Juergen Freund / Dugong (Dugong dugon) surfacing to take a breath of air. Dimakya Island, Palawan, Philippines, April 2010, endangered species.

Juergen Freund / School of Yellow line / Yellowstripe scads (Selaroides leptolepis) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Leatherback sea turtle (Dermochelys coriacea) swimming, Indo-pacific.

Juergen Freund / Leatherback sea turtle (Dermochelys coriacea) swimming, Indo-pacific.

Juergen Freund / Hard corals in the Tubbataha Reef lagoon. Tubbataha Reef National Marine Park, Palawan, Philippines, April 2009.

Juergen Freund / Blue starfish (Linckia laevigata) on a coral. Tubbataha Reef National Marine Park, Palawan, Philippines, April 2009.

Juergen Freund / A factory of women taking the meat out of cooked Blue swimmer crabs (Portunus pelagicus) to pack for export to America. Northern Palawan, Phillipines, May 2009

Juergen Freund / Spinner Dolphin (Stenella longirostris), a small dolphin found in offshore tropical waters around the world. Kei Islands, Indonesia, November 2009.

Juergen Freund / Bleached coral polyps, Papua New Guinea

Juergen Freund / Whitetip reef shark (Triaenodon obesus) West New Britain, Papua New Guinea.

Juergen Freund / Dogtooth tuna (Gymnosarda unicolor) West New Britain, Papua New Guinea.

Juergen Freund / Midnight snapper (Macolor macularis) West New Britain, Papua New Guinea.

Juergen Freund / Silvertip reef shark (Carcharhinus albimarginatus) West New Britain, Papua New Guinea.

Juergen Freund / Schooling Dark banded / Bluestreak fusiliers (Pterocaesio tile) on reef, West New Britain, Papua New Guinea.

Juergen Freund / Whip coral forest (Junceella sp) West New Britain, Papua New Guinea.

Juergen Freund / Teira batfish / Longfin spadefish (Platax teira) being cleaned by a cleaner wrasse, West New Britain, Papua New Guinea.

Juergen Freund / Two blue green nudibranchs (Nembrotha milleri) Batangas, Philippines.

Juergen Freund / Blue-ringed octopus (Hapalochlaena lunulata) moving over seabed, Batangas, Philippines.

Juergen Freund / Blue-ringed octopus (Hapalochlaena lunulata) swimming through water, Batangas, Philippines.

Juergen Freund / Blue-ringed octopus (Hapalochlaena lunulata) swimming through water, Batangas, Philippines.

Juergen Freund / Blue sea squirt (Clavelina caerulea) hosting an amphipod crustacean, Batangas, Philippines.

Juergen Freund / Blue spot ascidian (Clavelina moluccensis) Batangas, Philippines.

Juergen Freund / Aeolid nudibranch (Flabellina rubrolineata) on tunicate, Batangas, Philippines.

Juergen Freund / Soft coral mimicing nudibranch (Ceratosoma alleni) crawling over tunicates on coral reef, Anilao, Batangas, Philippines

Juergen Freund / Shoal of schooling of Scads (Carangidae) under a pier, Moluccas Islands, Indonesia.

Juergen Freund / Harlequin shrimps (Hymenocera elegans) on a Linkia blue starfish, North Sulawesi, Indonesia.

Juergen Freund / Yellowmargin triggerfish (Pseudobalistes flavimarginatus) with a shell in its mouth, Bali, Indonesia.

Juergen Freund / Details of skin of Blue sea star (Linckia laevigata) with commensal snails hanging on to it, Bali, Indonesia.

Juergen Freund / Variegated lizardfish (Synodus variegatus) swimming fast over sandy seabed, Bali, Indonesia.

Juergen Freund / Manta ray (Manta birostris) swimming, Komodo NP, Indonesia.

Juergen Freund / Split level of coral reef on white sandy seabed and dry topside landscape in background, Komodo NP, Indonesia, August 2009.

Juergen Freund / Large shoal of schooling Bigeye jacks / trevallies (Caranx sexfasciatus) at the edge of the reef, Sipadan Island, Malaysia.

Juergen Freund / Large shoal of schooling Bigeye jacks / trevallies (Caranx sexfasciatus) at the edge of the reef, Sipadan Island, Malaysia.

Juergen Freund / Schooling Chevron barracudas (Sphyraena putnamiae) Sipadan, Malaysia.

Juergen Freund / Schooling Chevron barracudas (Sphyraena putnamiae) Sipadan, Malaysia.

Juergen Freund / Schooling Chevron barracudas (Sphyraena putnamiae) Sipadan, Malaysia.

Juergen Freund / Aerial view of lines of Oyster cages at Pearl farm, Jewelmer Pearlfarm, Palawan, Philippines, May 2009

Juergen Freund / Aerial view of Jewelmer Pearlfarm platform on coral fringed island, Palawan, Philippines, May 2009.

Juergen Freund / Blue-spotted pufferfish (Arothron caeruleopunctatus) in a reef crevice, Sipadan, Sabah, Malaysia.

Juergen Freund / Sea snake / krait (Laticauda sp) swimming underwater, Sulawesi, Indonesia, Indo-pacific.

Juergen Freund / Blue sea star (Linckia laevigata) with commensal shells attached to skin, Bali, Indonesia.

Juergen Freund / Chocolate chip starfish / Horned sea star (Protoreastor nodosus) collected in their thousands for export as decorative objects and souvenirs, coloured with dyes. Indonesia, July 2008

Juergen Freund / Blue Club Tunicate (Rhopalaea circula) Batangas, Philippines.

Juergen Freund / Blue sea squirt (Clavelina caerulea) hosting an amphipod, Batangas, Philippines.

Juergen Freund / Horsehoe crabs (Tachypleus gigas) in defensive posture on sandy seabed, Palawan, Philippines.

Juergen Freund / Two Horsehoe crabs (Tachypleus gigas) on sandy seabed, one in defensive posture, Palawan, Philippines.

Juergen Freund / Dragon sea moth fish (Eurypegasus draconis) Palawan, Philippines.

Jurgen Freund / Carrier crab (Dorippe frascone) with an upside down jellyfish (Cassiopea andromeda) on its back. The jellyfish is bigger than the crab! Palawan, Philippines