Chris & Monique Fallows / Great white shark (Carcharodon carcharias) leaping out of water to predate seal, Seal Island, False Bay, South Africa, July.

Alex Mustard / Fangtooth moray eel (Enchelycore anatina) with mouth open, Grand Canaria, Canary Islands, Spain. East Atlantic Ocean.

Alex Mustard / Leafy seadragon (Phycodurus eques). Wool Bay Jetty, Edithburgh, Yorke Peninsula, South Australia.

Alex Mustard / Nudibranchs (Doto greenamyeri) newly described species on feather hydroids. Seraya Bay, north coast of Bali, Indonesia. Java Sea.

Doug Perrine / False killer whales (Pseudorca crassidens) mother and calf, off the Kona Coast , Hawaiian Islands, USA.

Alex Mustard / Spotlight goby (Gobiosoma louisae) looking out from inside a Yellow tube sponge (Aplysina fistularis), growing on a coral reef. Bloody Bay Wall, Little Cayman, Cayman Islands, British West Indies. Car...

Doug Perrine / Fin whale (Balaenoptera physalus) Pelagos Sanctuary for Mediterranean Marine Mammals, Ligurian Sea, Mediterranean Sea, Italy, June.

Alex Mustard / Great white shark (Carcharodon carcharias) from above. Guadalupe Island, Baja California, Mexico. East Pacific Ocean

Doug Perrine / False killer whale (Pseudorca crassidens) pod, off the Kona Coast of Hawaii Island, Hawaiian Islands, USA. January.

Alex Mustard / Southern stingrays (Hypanus americanus) swimming over a sand bar in the early morning. Grand Cayman, Cayman Islands. British West Indies. Caribbean Sea.

Alex Mustard / Portrait of a male Squarespot anthias (Pseudanthias pleurotaenia). Sangeang Island; Sumbawa, Indonesia. Flores Sea.

Alex Mustard / Great hammerhead shark (Sphyrna mokarran) portrait, South Bimini, Bahamas. The Bahamas National Shark Sanctuary. Gulf Stream, West Atlantic Ocean.