Fred Bavendam / Doublebar Goatfish (Parupeneus bifasciatus) resting on reef at night, Bali, Indonesia

Chris Newbert / Surmullet (Parupeneus sp), detail of scales, Red Sea

Chris Newbert / Surmullet (Parupeneus sp) eye, close-up, Red Sea, Egypt

Chris Newbert / Surmullet (Parupeneus sp) close-up of scales, Red Sea, Egypt

Chris Newbert / Goatfish (Parupeneus fraterculus) eye detail, Great Barrier Reef, Australia

Fred Bavendam / Yellowfin Goatfish (Mulloides vanicolensis) school near coral reef observed by scuba diver, often gather in large schools during the day and disperse at night to feed, Great Barrier Reef, Queensland,...

Norbert Wu / Yellow Goatfish (Mulloidichthys martinicus) school swimming underwater, barbells under chin are used to dig for food, Bonaire

Gary Bell/ Oceanwide / Black-spot Goatfish (Parupeneus signatus) and Goldlined Seabream (Rhabdosargus sarba) school with diver, Solitary Islands Marine Park, New South Wales, Australia

Pete Oxford / Doublebar Goatfish (Parupeneus crassilabris), Rainbow Reef, Fiji

Fred Bavendam / White-tip Reef Shark (Triaenodon obesus) and Mexican Goatfish (Mulloidichthys dentatus) school, Cocos Island, Costa Rica

Pete Oxford / Yellow Goatfish (Mulloidichthys martinicus) school in coral reef, Bonaire, Netherlands Antilles, Caribbean

Jack Perks / Red mullet (Mullus surmuletus) entering frame and foraging in sand beside Snakelocks anemone (Anemonia viridis) as Wrasse (Labridae sp.) enters frame and picks off disturbed food, Swanage Pier, Dorset...