Alex Mustard / Secretary blenny (Acanthemblemaria maria) making a home in a deserved worm tube of a great star coral (Montastraea cavernosa), East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Se...

Konrad Wothe / Giant Green Sea Anemone (Anthopleura xanthogrammica) group, Goose Barnacles (Lepas anserifera) group and Ochre Sea Stars (Pisaster ochraceus) at low tide, Olympic National Park, Washington

Chris Newbert / Blue Sea Star (Linckia laevigata) and schooling baitfish, 20 feet deep, Papua New Guinea

Birgitte Wilms / Seahorse (Hippocampus sp) holding on to a Crinoid, Papua, Papua New Guinea

Patricio Robles Gil / Sea Star on rocky beach, Baja California, Mexico

Chris Newbert / Fan Coral (Melithaea sp) group and Feather Star (Oxycomanthus bennetti), Solomon Islands

Birgitte Wilms / Brittlestar (Ophiothrix sp) juvenile on Blue Sea Star (Linckia laevigata) Solomon Islands

Norbert Wu / Scuba diver exploring ice caves below Weddell Seal (Leptonychotes weddellii) breathing holes, life below feeds on seal feces, Antarctica

Norbert Wu / Morning Sun Star (Solaster dawsoni) fed on by Rose Anemone, Queen Charlotte Islands, Canada

Fred Bavendam / Red Biscuit Star (Pentagonaster dubeni), Jervis Bay, New South Wales, Australia

Flip Nicklin / Sea Star, Anemones and Coralline Algae living 40 feet below the water surface, Admiralty Inlet, Lancaster Sound, Nunavut, Canada

Norbert Wu / Weddell Seal (Leptonychotes weddellii) breathing hole is above this ice cave with diver, the cave is filled with Sea Stars (Odontaster validus) that feeds on seal feces, Antarctica

Fred Bavendam / Variety of small reef fish swimming in the currents above a Hard Coral reef with Sponges, Ascidians, and a blue Sea Star, Manado, North Sulawesi, Indonesia

Norbert Wu / Candy Cane Sea Star (Fromia monilis) on Magnificent Sea Anemone (Heteractis magnifica) foot, Sipidan Island, Borneo

Fred Bavendam / Basslet (Pseudanthias sp) school, swimming near a Sea Fan (Melithaea sp) and a Blue Sea Star (Linckia laevigata)

Fred Bavendam / Common Lionfish (Pterois volitans) lurking among Feather Star Crinoids clinging to the lip of a large Barrel Sponge, Bali, Indonesia

Fred Bavendam / Sunflower Sea Star (Pycnopodia helianthoides) crawling amidst Kelp, Sponge, Sea Anemones, Sea Urchins, and a Sculpin, Quadra Island, British Columbia, Canada

Fred Bavendam / Common Comet Star (Linckia guildingii) in an unusual lavender color variation, it is typically beige or yellowish in color, Manado, North Sulawesi, Indonesia

Fred Bavendam / Firebrick Sea Star (Asterodiscides truncatus) portrait, underwater, Jarvis Bay, New South Wales, Australia

Jeff Rotman / Sunflower Sea Star (Pycnopodia helianthoides) scavenging dead Yelloweye Rockfish (Sebastes ruberrimus) Vancouver Island, British Columbia, Canada North Pacific Ocean

Jeff Rotman / Sunflower Sea Star (Pycnopodia helianthoides) scavenging dead Lingcod (Ophiodon elongatus) Vancouver Island, British Columbia, Canada North Pacific Ocean

Jeff Rotman / Sunflower Sea Star (Pycnopodia helianthoides) scavenging dead Yelloweye Rockfish (Sebastes ruberrimus) Vancouver Island, British Columbia, Canada, North Pacific Ocean

Jeff Rotman / Sunflower SeaStar (Pycnopodia helianthoides) scavenging dead Yelloweye Rockfish (Sebastes ruberrimus). Vancouver Island, British Columbia, Canada, North Pacific Ocean

Jeff Rotman / Sunflower Sea Star (Pycnopodia helianthoides) scavenging Lingcod (Ophiodon elongatus) Vancouver Island, British Columbia, Canada, North Pacific Ocean

Jeff Rotman / Sunflower Sea Star (Pycnopodia helianthoides) scavenging Pacific Cod (Gadus macrocephalus). Vancouver Island, British Columbia, Canada. North Pacific Ocean

Jeff Rotman / Sunflower Sea Star (Pycnopodia helianthoides) scavenging dead Pacific Cod (Gadus macrocephalus) Vancouver Island, British Columbia, Canada. North Pacific Ocean

Colin Monteath / Eleven-armed Sea Star (Coscinasterias calamaria) group on coastal rocks at low tide, Paparoa National Park, New Zealand

Colin Monteath / Eleven-armed Sea Star (Coscinasterias calamaria) group on coastal rocks at low tide, Paparoa National Park, New Zealand

Colin Monteath / Eleven-armed Sea Star (Coscinasterias calamaria) group at low tide, Paparoa National Park, New Zealand

Chris Newbert / Starfish skin, Indonesia

Chris Newbert / Pincushion Sea Star (Culcita novaeguineae) skin, Indonesia

Chris Newbert / Candy Cane Sea Star (Fromia monilis) skin, Indonesia

Chris Newbert / Blue Sea Star (Linckia laevigata) with two new arms budding from one leg, Indonesia

Alex Mustard / Triplefin (Enneanectes sp) between the polyps of a great star coral (Montastraea cavernosa) East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Alex Mustard / Secretary blenny (Acanthemblemaria maria) young peering out of its tube on the surface of a great star coral (Montastraea cavernosa) East End, Grand Cayman, Cayman Islands, British West Indies. Caribb...

Kevin Schafer / Glaucous-winged Gull (Larus glaucescens) eating a seastar, Puget Sound, Washington

Kevin Schafer / Glaucous-winged Gull (Larus glaucescens) eating a sea star, Puget Sound, Washington

Norbert Wu / Antarctic Sun Starfish (Labidiaster annulatus), Palmer Station, Antarctic Peninsula, Antarctica

Norbert Wu / Brittle Star (Ophionotus victoriae) trying to defend itself against Antarctic Sun Starfish (Labidiaster annulatus), Palmer Station, Antarctic Peninsula, Antarctica

Norbert Wu / Sea Star (Perknaster aurorae) on Brown Algae (Himantothallus grandifolius) and scuba diver, Palmer Station, Antarctic Peninsula, Antarctica

Norbert Wu / Antarctic Sun Starfish (Labidiaster annulatus), Hydrozoan (Candelabrum penola), and Sponge (Mycale acerata) below kelp forest, Palmer Station, Antarctic Peninsula, Antarctica

Alex Mustard / Grey angelfish (Pomacanthus arcuatus) swimming over a colony of great star coral (Montastrea cavernosa) Georgetown, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Pete Oxford / Three spot damselfish, juvenile (Stegastes / Pomacentrus planifrons) on Great Star coral (Montastraea cavernosa) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Bicolor damselfish (Stegastes partitus) and Great star coral (Montastraea cavernosa) Bonaire, Caribbean

Sebastian Kennerknecht / California Condor (Gymnogyps californianus) three year old male, Pinnacles National Park, California

Christian Ziegler / Cushioned Star (Oreaster reticulatus) in seagrass with schooling fish, Twin Cays, Carrie Bow Cay, Belize

Christian Ziegler / Cushioned Star (Oreaster reticulatus) feeding in sea grass between the roots of Red Mangroves (Rhizophora mangle), Carrie Bow Cay, Belize

Juergen Freund / Friant's sea star (Nardoa frianti) on reef with crinoids / featherstars, West New Britain, Papua New Guinea.

Birgitte Wilms / Sea Star (Pentaceraster alveolatus) spawning, Indonesia

Birgitte Wilms / Mantis Shrimp (Odontodactylus scyllarus) on starfish, Papua New Guinea

Juergen Freund / Young juvenile Star pufferfish (Arothron stellatus) on the sand. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Starry puffer (Arothron stellatus) getting cleaned by a wrasse. Misool, Raja Ampat, West Papua, Indonesia.

Alex Mustard / A young Thorny Seahorse (Hippocampus hystrix) hides in the "arms" of a feather star (Crinoid). Tulamben, Bali, Indonesia, Java Sea, September.

Hiroya Minakuchi / Sea Star (Odontaster sp) and limpet, Antarctica

Juergen Freund / Spiny sea star (Gomophia egeriae) on the seabed with cushionstar in background, Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Giant / Star pufferfish (Arothron stellatus) at coral reef, Misool, Raja Ampat, West Papua, Indonesia, January

Pete Oxford / Cortez Starfish (Pentaceraster cumingi), Kicker Rock, Galapagos Islands, Ecuador

Matthias Breiter / Giant Green Sea Anemone (Anthopleura xanthogrammica) group and Ochre Sea Stars (Pisaster ochraceus) on rock wall on St. Lazaria Island, Alaska

Pete Oxford / Cushioned Star (Oreaster reticulatus) on sandy ocean floor, Belize Barrier Reef, Belize

Pete Oxford / Cushioned Star (Oreaster reticulatus) feeding on coral, Belize Barrier Reef, Belize

Pete Oxford / Cushioned Star (Oreaster reticulatus) amid grasses, Belize Barrier Reef, Belize

Aflo / Y-12201 Fish eye view of stars above Mt Fuji, Fujisan, Japan

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) pair at nest with seastar skeletons, Galapagos Islands, Ecuador

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) pair at nest with seastar skeletons, Galapagos Islands, Ecuador

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) feeding on seastar, Galapagos Islands, Ecuador

Wild Wonders of Europe / Lundgren / Star fish eating an Icelandic cyprine (Arctica islandica) Trondheimsfjorden, Norway, February 2009

Richard Herrmann / Brittlestar (Ophiothrix sp) group on seastar, Santa Barbara Island, Channel Islands, California

Fred Bavendam / Harlequin Ghost Pipefish (Solenostomus paradoxus) camouflaged in Feather Star, Bali, Indonesia

GEORGETTE DOUWMA / Star puffer (Arothron stellatus) Andaman Sea, Thailand.

GEORGETTE DOUWMA / Star puffer (Arothron stellatus) Andaman Sea, Thailand.

Konrad Wothe / Red-knobbed Sea Star (Protoreaster linckii) pair in shallow water, Zanzibar, Tanzania

Fred Bavendam / Mottled Creeping Ctenophore (Coeloplana astericola) group on Orange Starfish (Echinaster luzonicus), Bali, Indonesia

Fred Bavendam / Sea Star (Mediaster aequalis), California Sea Cucumber (Parastichopus californicus) and Red Sea Urchin (Strongylocentrotus franciscanus), British Columbia, Canada

Fred Bavendam / Bat Star (Asterina miniata) group scavenging on dead Pacific Rock Crab (Cancer antennarius), Monterey Bay, California

Fred Bavendam / Orange Sun Star (Solaster stimpsoni) warding off the attack of a much smaller Morning Sun Star (Solaster dawsoni), British Columbia, Canada

Fred Bavendam / Gulf Star (Oreaster occidentalis) pair and King Angelfish (Holacanthus passer) school, Galapagos Islands, Ecuador

Fred Bavendam / Sea Star (Mediaster aequalis) and Taylor's Colonial Tunicates (Metandrocarpa taylori), British Columbia, Canada

Chris Newbert / Sea Star (Iconaster longimanus) underside, Indonesia

Norbert Wu / Bat Star (Asterina miniata) with regenerated arm, Monterey, California

Norbert Wu / Bat Star (Asterina miniata) with regenerated arm, Monterey, California

Norbert Wu / Brittle Star (Ophiothrix spiculata) group, Channel Islands, southern California

Norbert Wu / Bat Star (Asterina miniata) among Brittle Stars (Ophiothrix spiculata), Channel Islands, southern California

Pete Oxford / Tan Sea Star (Phataria unifascialis), Wolf Island, Galapagos Islands, Ecuador

Pete Oxford / Cortez Starfish (Pentaceraster cumingi) pair, Galapagos Islands, Ecuador

Konrad Wothe / Giant Green Sea Anemone (Anthopleura xanthogrammica) group and Ochre Sea Stars (Pisaster ochraceus) at low tide, Olympic National Park, Washington

Konrad Wothe / Giant Green Sea Anemone (Anthopleura xanthogrammica) group, Goose Barnacles (Lepas anserifera) group and Ochre Sea Stars (Pisaster ochraceus) at low tide, Olympic National Park, Washington

Mark Moffett / Tarantula Hawk (Pepsis sp) has laid a small white egg on a stunned Tarantula (Theraphosidae) and departed the burrow, California

Norbert Wu / Sea cucumber exhibits escape response when threatened by arms of Sunflower Sea Star (Pycnopodia helianthoides), Vancouver Island, British Columbia, Canada. Sequence 2 of 3

Norbert Wu / Sea cucumber exhibits escape response when threatened by arms of Sunflower Sea Star (Pycnopodia helianthoides), Vancouver Island, British Columbia, Canada. Sequence 3 of 3

Norbert Wu / Sea cucumber exhibits escape response when threatened by arms of Sunflower Sea Star (Pycnopodia helianthoides), Vancouver Island, British Columbia, Canada. Sequence 1 of 3

Norbert Wu / Sea Star (Pharia pyramidata) releasing sperm and eggs into current, Komodo Island, Indonesia

Norbert Wu / Morning Sun Star (Solaster dawsoni), Vancouver Island, Canada

Norbert Wu / Sea Star (Solaster sp) regenerating arms, Vancouver Island, Canada

Norbert Wu / Sunflower Sea Star (Pycnopodia helianthoides) arms curling around a blade of kelp, Alaska

GEORGETTE DOUWMA / Orangestriped triggerfish (Balistapus undulatus) feeding on a crinoid. Andaman Sea, Thailand

Georgette Douwma / Star pufferfish (Arothron stellatus) juvenile. Rinca, Indonesia