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

Mitsuaki Iwago / Purple Gallinule (Porphyrio martinicus) walking across lily pads, North America

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

Chris Newbert / Feather Star (Colobometra perspinosa) on Sea Fan (Melithaea sp) and Leather Coral (Sarcophyton sp) 70 Feet Deep, Solomon Islands

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

Fred Bavendam / Purple Sea Urchin (Strongylocentrotus purpuratus) and Red Sea Urchin (Strongylocentrotus franciscanus) group, Channel Islands, California

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