Alex Mustard / Ribbon sweetlips (Plectorhinchus polytaenia) USAT Liberty Wreck, Tulamben, Bali, Indonesia. Java Sea

Claudio Contreras / Porkfish (Anisotremus virginicus) school. Cancun National Park, Caribbean Sea, Mexico.

Alex Mustard / Bluestriped grunt (Haemulon sciurus) portrait, West End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Pete Oxford / Shoal of Yellowtail Grunts (Anisotremus interruptus) Floreana Island, Galapagos, Equador, Pacific ocean

Claudio Contreras / Shoal of Smallmouth grunts (Haemulon chrysargyreum) surrounding Blade firecoral (Millepora complanata) Cancun National Park, Caribbean Sea, Mexico, September

Doug Perrine / Giant brain coral provides shelter for Grunts and Squirrelfish, Florida Keys, USA.

Doug Perrine / Diver and Grunts in airplane wreck, Cozumel, Mexico

Pascal Kobeh / School of white margates or white grunts (Haemulon album) Yucatan peninsula, Mexico.

Pascal Kobeh / Close-up of a school of bluestriped or boar grunts (Haemulon sciurus) Yucatan peninsula, Mexico, Caribbean.

Alex Mustard / Reef manta (Mobula alfredi) visiting a cleaning station on a coral reef with a school of Onespot snappers (Lutjanus monostigma), Oriental sweetlips (Plectorhinchus vittatus) and Sabre squirrelfish (Sa...

Shane Gross / Smallmouth grunt (Haemulon chrysargyreum) shoal schooling on coral reef. Nassau, Bahamas.

Franco Banfi / Shoal of colorful yellow fish Panamic porkfish (Anisotremus taeniatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico