Juergen Freund / Detail of Nudibranch (Dendrodoris tuberculosa) Batangas, Philippines.

Juergen Freund / Detail eye and skin of a Pufferfish, West Papua, Indonesia.

Juergen Freund / Ornate ghost pipefish (Solenostomus paradoxus), detail of the tail. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Ornate ghost pipefish (Solenostomus paradoxus), close-up of the head. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Friant's sea star (Nardoa frianti), close-up of skin of the upper side. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Two whip coral gobies (Bryaninops yongei) on a black coral sea whip. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Trunkfish / Longhorn cowfish {Lactoria cornuta}

Juergen Freund / Close up of face of inflated pufferfish {Arothron sp}, Indo-Pacific

Juergen Freund / Close up of eye of Princess parrotfish {Scarus taeniopterus} Caribbean

Juergen Freund / Moorish Idol fish {Zanculs cornutus} Indo-Pacific

Juergen Freund / Close-up of jaw of Garfish {Belone belone} Indo-pacific

Juergen Freund / Close-up eye of Longtail filefish {Aluterus scriptus} Indo-Pacific

Juergen Freund / Hawkfish (Cirrhitichthys oxycephalus) and brittlestars on a soft coral (Dendronephthya sp.) New Ireland, Papua New Guinea

Juergen Freund / Crocodilefish (Cymbacephalus beauforti) detail of eye, Papua New Guinea.

Juergen Freund / Detail of the feet of a Sea cucumber, it crawls across the floor of the sea using hundreds of minute suction cups in the tubular feet, Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Detail of skin of Comet longfin fish (Calloplesiops altivelis) Komodo NP, Indonesia, Indo-pacific.

Juergen Freund / Close-up of Featherstar (Crinoidea) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Longspine waspfish (Paracentropogon longispinus), close-up of the head and eye. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Green urn sea squirt / tunicate (Didemnum molle), close-up of the syphon. Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Close up of arm of Featherstar (Crinoidea) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Close up of Featherstar (Crinoidea) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Invasion of parasitic Waminoa flatworms (Waminoa sp) on soft coral. Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Close up of leg of Starfish comb jelly (Coeloplana astericola) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Antennae-like appendages / tentacles above the eyes of a Common lionfish (Pterios volitans) on top of the reef. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Redbreasted / Red banded wrasse (Cheilinus fasciatus). Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Close-packed school of Yellow ribbon sweetlips (Plectorhinchus polytaenia) facing the camera. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Vermitid worm shell (Dendropoma maxima). Misool, Raja Ampat, West Papua, Indonesia,

Juergen Freund / Close up of leg of Starfish comb jelly (Coeloplana astericola) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Toby pufferfish (Canthigaster sp.), close-up of the head. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Eggs of Golden damselfish (Amblyglyphidodon aureus) on a Whip coral. Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Staghorn coral {Acropora sp} growing out of tablecoral, Great Barrier Reef, Australia

Juergen Freund / Close up of soft coral {Alcyonacea} polyps feeding, Great Barrier Reef, Australia

Juergen Freund / Close up of Acropora coral, Great Barrier Reef, Australia

Juergen Freund / Close-up of marine polyclad flatworm (Polycladida)

Juergen Freund / Nudibranch (Halgerda sp) from Discodorididae family

Juergen Freund / Fuchsia flatworm (Pseudoceros ferrugineus) close-up, Great Barrier Reef, Australia.

Juergen Freund / Close-up of Nudibranch (Halgerda sp) from Discodorididae family

Juergen Freund / Close up of Nudibranch (Halgerda sp) from Discodorididae family

Juergen Freund / Fuchsia flatworm (Pseudoceros ferrugineus) close-up, Great Barrier Reef, Australia.

Juergen Freund / Close up of Nudibranch (Halgerda sp) from Discodorididae family

Juergen Freund / Close up of rhinophores on Nudibranch (Halgerda sp) from Discodorididae family

Juergen Freund / Close up of rhinophore of Nudibranch (Halgerda sp) from Discodorididae family

Juergen Freund / close up of mouth and teeth of Longtail filefish {Aluterus scriptus} Indo-Pacific

Juergen Freund / Bumble-bee shrimp {Neocaridina sp} on Sea cucumber {Thelenota ananas} Christmas Island, Indian Ocean

Juergen Freund / Close up of openings on skin of Black barrel sponge {Ircinia strobilina} Caribbean

Juergen Freund / Scorpionfish (Scorpaena sp) close up of fin, Caribbean

Juergen Freund / Close up of curled arms of feather star {Crinoidea} Indo-Pacific

Juergen Freund / Close up of Tunicate {Polycarpa aurata} Indo Pacific

Juergen Freund / Mosquito (Toxorhynchitines) sucking human blood Biting.

Juergen Freund / Close up of tentacles of Anemone {Actiniaria sp} Caribbean Sea

Juergen Freund / Close up of Whale shark skin + gills {Rhincodon typus} Indo Pacific

Juergen Freund / Sea thimble jellyfish close up. (Linuche unguiculata) Caribbean approx 15mm in size. In Spring many millions found at water surface.

Juergen Freund / Blenny (Blenniidae). Mediterranean, Europe

Juergen Freund / Blenny (Blenniidae). Mediterranean, Europe

Juergen Freund / Striped Triplefin (Helcogramma striata) on basketstar. Indo-Pacific

Juergen Freund / Christmas Island Red Crab eggs, Christmas Island.

Juergen Freund / Close-up of fin of Parrotfish, Caribbean

Juergen Freund / Close-up of eye of Broadclub cuttlefish {Sepia latimanus} Indo Pacific

Juergen Freund / Close up of syphon of Reef octopus {Octopus sp} Indo-Pacific

Juergen Freund / Close up of siphon of Pearly nautilus {Nautilus pompilius} Sulu-sulawesi seas. Used to fill shell with water to sink and expell water to rise, lateral movement by jet propulsion

Juergen Freund / Close up of eye of sea snail, Sulu-sulawesi seas, Indo-Pacific

Juergen Freund / Broadclub cuttlefish head close up (Sepia latimanus) Indo-Pacific

Juergen Freund / Green moray eel {Gymnothorax funebris} Sea of Cortez, Mexico

Juergen Freund / Blenny {Blenniidae} Underwater Mediterranean

Juergen Freund / Stressed Christmas Island red crab bubbling {Gecarcoidea natalis} Indian Ocean,