Juergen Freund / Soft corals (Alcyonacea) and featherstar (Crinoidea)in the reef. Misool, Raja Ampat, West Papua, Indonesia, January.

Juergen Freund / Soft corals (Alcyonacea) in many colors. Misool, Raja Ampat, West Papua, Indonesia, January.

Juergen Freund / Leather coral (Alcyonacea) on coral reef, North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Fluorescent coral (Montastrea sp.) in normal light. Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Fluorescent corals. Misool, Raja Ampat, West Papua, Indonesia,

Juergen Freund / Detail of Lace coral (Stylaster sp) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Clove polyps of soft coral (Xenia sp) wafting in the current, Komodo NP, Indonesia, Indo-pacific.

Juergen Freund / Close up of fluorescent corals. Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Fluorescent corals. Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Soft corals (Dendronephthya sp) on coral reef, Bali, Indo-pacific.

Juergen Freund / Deatil of blue polyps on Whip coral, Sipadan, Malaysia

Juergen Freund / Bleached coral, Kimbe Bay, Papua New Guinea, Indo-pacific

Juergen Freund / Finger coral (Porites sp) growing from a coral pillar, Sipadan, Malaysia.

Juergen Freund / Red whip corals / sea whips (Ellisella sp) Kimbe Bay, Papua New Guinea, Indo-pacific.

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

Juergen Freund / Close up of coral polyps of a brain coral, Lembeh Strait, North Sulawesi, Indonesia,

Juergen Freund / Soft coral (Dendronephthya sp) on a pillar of a jetty, North Raja Ampat, West Papua, Indonesia

Juergen Freund / Close-up of a branch of soft coral (Dendronephthya sp.). North Raja Ampat, West Papua, Indonesia

Juergen Freund / Zanzibar whip coral shrimp (Dasycaris zanzibarica) camouflaged on a strand of Whip coral, Lembeh Strait, Sulawesi, Indonesia, September

Juergen Freund / Colorful coral reef with soft corals (Alcyonacea) and fan corals (Gorgonacea). Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Colorful coral reef with soft corals (Alcyonacea) and fan corals (Gorgonacea). Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Fluorescent corals viewed under UV light, Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Fluorescent corals viewed under a UV light, Misool, Raja Ampat, West Papua, Indonesia, January

Juergen Freund / Soft corals (Alceonacea) amidst a fan coral (Gorconacea). Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Collection of pink and orange soft corals (Alcyonaceae). Misool, Raja Ampat, West Papua, Indonesia, January

Peter Scoones / Bleached coral {Acropora sp} with meter showing 31C temperature which could cause the damage, Indian ocean

Juergen Freund / Octocorals {Alcyonaria} collected for the Queensland Museum collection from the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Claudio Contreras / Symmetrical brain coral close-up (Pseudodiploria strigosa) Banco Chinchorro Biosphere Reserve, Caribbean Sea, Mexico, April

Juergen Freund / Red whip corals / sea whips (Ellisella sp) and various sponges on coral reef, Indo-pacific

Juergen Freund / Red whip corals / sea whips (Ellisella sp) and various sponges on coral reef, Indo-pacific

Tim Laman / Corals growing within an opening in a massive coral. Andros Barrier Reef, Bahamas.

Doug Perrine / Brain coral {Pseudodiploria strigosa} releasing egg and sperm packets during mass spawning, Gulf of Mexico, Caribbean

Tim Laman / Lettuce Corals (Turbinaria sp.) sheltering Bronze Soldierfish (Myripristis adusta) and other Soldierfish species. Republic of Palau. December 2001.

Tim Laman / Leather corals and school of Lyre-tailed Anthias (Pseudanthias squamipinnis) on coral reef in Fiji, Pacific.

Juergen Freund / Whip coral growing up through Hard coral, fight for survival, Indo-Pacific

Juergen Freund / Juvenile corals {Acropora sp} Great Barrier Reef, Australia, Indo-pacific

Juergen Freund / Diver watching Australian spotted jellyfish (Phyllorhiza punctata), Rowley Shoals, Western Australia

Jurgen Freund / Whip corals (Ellisella sp), with diver in the background. Rowley Shoals, Western Australia

Juergen Freund / Diver over Cabbage coral field {Turbinaria sp} Indo-Pacific

Juergen Freund / Fan coral {Subergorgia mollis} Philippines

Juergen Freund / Fan coral {Subergorgia mollis} Philippines

Juergen Freund / Mushroom coral {Anthomastus ritteri} deepsea, 300 - 800 m, Pacific

Juergen Freund / Fan coral {Subergorgia mollis} Philippines

Juergen Freund / Soft coral {Dendronephthya sp} Indo pacific

Juergen Freund / Soft coral {Dendronephthya sp} Indo pacific

Juergen Freund / Soft coral {Minabea aldersladei} polyps feeding at night, Indo pacific

Juergen Freund / Gorgonian coral (Gorganacea) and sponge Philippines, South Pacific

Juergen Freund / Coral polyps of stony coral feeding at night (Scleractinia) Carribean Sea

Juergen Freund / Whip coral and diver (Stichopathes) Indo-Pacific

Juergen Freund / Close up of stone coral (Favites sp), polys closed, Indo Pacific

Juergen Freund / Hard coral (Mycedium elephantotus) Philippines

Juergen Freund / Close up of Hard coral (Mycedium elephantotus) Philippines

Juergen Freund / Tube coral (Dendrophyllia sp) with polyps extended, Indo Pacific

Juergen Freund / Featherstar in Fan coral {Milleporidaae} Indo-Pacific

Juergen Freund / Detail of Mycedium coral {Mycedium elephantotus} Indo-Pacific

Juergen Freund / Daisy coral {Goniopora sp} with polyps open, Indo-Pacific

Juergen Freund / Xenia coral polyps {Xenia sp} Indo-Pacific

Juergen Freund / Detail of Mycedium coral {Mycedium elephantotus} Indo-Pacific

Juergen Freund / Tube corals {Tubastrea faulkneri} with polyps open, Indo-Pacific

Juergen Freund / Fluorescent Hard coral {Heliofungia actiniformis} seen under normal light, Papua New Guinea

Juergen Freund / Chalice coral {Montipora sp} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Cynarina lacrymalis} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Pectinia sp} fluorescent under UV light, Papua New Guinea

Juergen Freund / Fluorescent hard corals {Mycedium elephantotus} in normal light, Papua New Guinea

Juergen Freund / Hard coral {Scolymia vitiensis} fluorescent under UV light, Papua New Guinea

Juergen Freund / Soft coral {Scapophyllia sp} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Mycedium elephantotus} fluorescent under UV light, Papua New Guinea

Juergen Freund / Star coral {Montastrea sp} fluorescent under UV light, Papua New Guinea

Juergen Freund / Fluorescent hard coral {Scolymia sp} in normal light Papua New Guinea

Juergen Freund / Hard coral {Goniastrea palauensis} fluorescent under UV light, Papua New Guinea

Juergen Freund / Colonial hard coral {Euphyllia ancora} Papua New Guinea

Juergen Freund / Fluorescent Solitary coral {Cynarina lacrymalis} in normal light, Papua New Guinea

Juergen Freund / Hard corals {Favia sp} fluorescent under UV light, Papua New Guinea

Juergen Freund / Fluorescent Hard coral {Goniopora sp} in normal light, Papua New Guinea

Juergen Freund / Hard coral {Scolymia sp} fluorescent under UV light, Papua New Guinea

Juergen Freund / Soft coral forest and red sea fans, Papua New Guinea

Juergen Freund / Bubble coral with tentacles extended at night {Physogyra lichtensteini} Indo-Pacific

Juergen Freund / Hard coral {Platygyra sp}, fluorescent under UV light, Great Barrier Reef & Coral Sea, Australia

Juergen Freund / Hard coral {Mycedium elephantotus} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Acropora millepora} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Stylophora pistillata} fluorescent under UV light, Papua New Guinea

Juergen Freund / Soft coral, tree fern / palm coral {Clavularia sp} fluorescent under UV light, Papua New Guinea

Juergen Freund / Fluorescent Star coral {Montastrea sp} in normal light, Papua New Guinea

Juergen Freund / Fluorescent hard coral {Blastomussa wellsi} in normal light, Papua New Guinea

Juergen Freund / Whip corals + huge Fan coral + Basslets {Pseudanthias sp} + diver with flashlight in background, Papua New Guinea

Juergen Freund / Stone coral {Porites sp} with parrotfish bite scratches, Indo-Pacific

Juergen Freund / Hard coral {Scolymia vitiensis} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Mycedium elephantotus} fluorescent under UV light, Papua New Guinea

Juergen Freund / Fluorescent Tree fern / palm coral {Clavularia sp} in normal light, Papua New Guinea

Juergen Freund / Bleached & healthy coral {Goniopora sp}, Indo-Pacific

Juergen Freund / Hard coral {Mycedium elephantotus} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Mycedium elephantotus} fluorescent under UV light, Papua New Guinea

Juergen Freund / Hard coral {Symphyllia sp} fluorescent under UV light, Great Barrier Reef & Coral Sea, Australia

Juergen Freund / Coral head {Pavona clavus}, Papua New Guinea

Juergen Freund / Cabbage coral field {Turbinaria sp} Papua New Guinea

Juergen Freund / Detail of hard coral {Favites abdita}, Indo-Pacific