Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) school, 40 feet deep, Solomon Islands

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) schooling, 30 feet deep, Solomon Islands

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) school, 40 feet deep, Solomon Islands

Norbert Wu / Bigeye Trevally (Caranx sexfasciatus) school form a moving circle, Borneo

Fred Bavendam / Bigeye Trevally (Caranx sexfasciatus) school with diver, Bali, Indonesia

Alex Mustard / Black and white photo of school of Bigeye trevally (Caranx sexfasciatus) form a circular shoal in open water, on the drop off of a coral reef. Ras Mohammed National Park, Sinai, Egypt. Red Sea. Highly...

Gary Bell/ Oceanwide / Bigeye Trevally (Caranx sexfasciatus) school, Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Bigeye Trevally (Caranx sexfasciatus) school under pier, Great Barrier Reef, Australia

Franco Banfi / Scuba diver swimming with a big shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Scuba diver on the sandy bottom surrounded by shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Scuba diver on the sandy bottom surrounded by shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Big Gulf grouper (Mycteroperca jordani) in front of a Shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Scuba diver swim between shoal of Dog snapper, (Lutjanus novemfasciatus) and shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Shoal of Dog snapper, (Lutjanus novemfasciatus) in front of shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Alex Mustard / Few fish from a school of Bigeye trevally (+Caranx sexfasciatus) break off to scratch themselves against the flank of a blacktip reef shark (Carcharhinus melanopterus). This is a common and world wide...

Alex Mustard / Long exposure of school of Bigeye trevally (Caranx sexfasciatus) swimming in front of a jetty, close to sunset. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Pacific Ocean.

Ralph Pace / Bigeye Trevally (Caranx sexfasciatus) school, Cabo Pulmo National Park, Baja California, Mexico

Nick Hawkins / Divers observing large school of Bigeye trevally (Caranx sexfasciatus). Near Cocos Island National Park, Costa Rica.

Nick Hawkins / Bigeye trevally (Caranx sexfasciatus), a large shoal. Cocos Island National Park, Costa Rica.

Franco Banfi / Amazon kingfish, (Chloroceryle amazona) perched, Pantanal wetlands, Mato Grosso, Brazil

David Fleetham / Tille trevally (Caranx tille), two in inshore reefs. Between Yap and Palau, Micronesia.

Alex Mustard / Bigeye trevally (Caranx sexfasciatus) swim in front of volcanic boulders. Darwin Island, Galapagos National Park, Galapagos Islands. East Pacific Ocean.

Alex Mustard / Bigeye trevally (Caranx sexfasciatus) forming a circular shoal in blue water, on the drop off of a coral reef. Ras Mohammed National Park, Sinai, Egypt. Red Sea

David Fleetham / Green sea turtle (Chelonia mydas) swimming through a school of Bigeye jacks (Caranx sexfasciatus) off the island of Sipidan, Malaysia.

Alex Mustard / Large school of Bigeye jacks (Caranx sexfasciatus) over a coral reef, made up of predominantly Acropora sp. hard corals. Tubbataha reef, Tubbataha Reefs Natural Park, UNESCO World Heritage Site Palawa...

Franco Banfi / Shoal of Bigeye Jack (Caranx sexfasciatus) Malpelo Island National Park, UNESCO World Heritage Site, Colombia, East Pacific Ocean

Franco Banfi / Shoal of Bigeye jack (Caranx sexfasciatus) Malpelo Island National Park, UNESCO World Heritage Site, Colombia, East Pacific Ocean

Franco Banfi / Shoal of Bigeye jack (Caranx sexfasciatus) Malpelo Island National Park, UNESCO World Heritage Site, Colombia, East Pacific Ocean

Claudio Contreras / Bigeye Trevally (Caranx sexfasciatus), Roca Partida Islet, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Bigeye Trevally (Caranx sexfasciatus), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Silky Shark (Carcharhinus falciformis) and Bigeye Trevally (Caranx sexfasciatus), Silky Shark IUCN Near Threatened, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands),...

Claudio Contreras / Bigeye Trevally (Caranx sexfasciatus), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific O...

Claudio Contreras / Bigeye Trevally (Caranx sexfasciatus), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific O...

Claudio Contreras / Bigeye Trevally (Caranx sexfasciatus), Roca Partida Islet, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific Oce...

Pascal Kobeh / Bigeye trevally or jacks (Caranx sexfasciatus) large shoal, Panama, Pacific Ocean

Alex Mustard / Diver photographing a school of Big eye trevally (Caranx sexfasciatus). South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Alex Mustard / School of Crescent-tail bigeyes (Priacanthis hamrur) swims in front of a school of Bigeye jacks (Caranx sexfasciatus). Ulong Island, Rock Islands, Palau, Micronesia. Tropical west Pacific Ocean.

Georgette Douwma / Bigeye trevally (Caranx sexfasciatus) school over coral reef. Sipadan, Malaysia.

Georgette Douwma / Diver photographing a school of Bigeye trevally (Caranx sexfasciatus) Sipadan, Malaysia. November 2015.

Franco Banfi / Shoal of Bigeye trevally (Caranx sexfasciatus) Tulamben, Bali Island, Indonesia, Pacific Ocean

Franco Banfi / Shoal of Bigeye trevally (Caranx sexfasciatus) Tulamben, Bali Island, Indonesia, Pacific Ocean

Franco Banfi / Shooling Bigeye jack (Caranx sexfasciatus) and Pacific creolefish (Paranthias colonus) Cocos Island National Park, Costa Rica.

Alex Mustard / Huge school of Bigeye trevally (Caranx sexfasciatus) swimming over a coral reef. South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Alex Mustard / Huge school of Bigeye trevally (Caranx sexfasciatus) swimming over a coral reef. South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Georgette Douwma / Bigeye trevally or jack (Caranx sexfasciatus) shoal, Sipadan, Malaysia.

Aflo / Bigeye trevally (Caranx sexfasciatus) shoal swimming, Kume Island, Japan. December.

Aflo / Diver approaching large shoal of Bigeye trevally (Caranx sexfasciatus) shoal swimming, Kume Island, Japan. December.

Pascal Kobeh / School of Bigeye trevally / jacks (Caranx sexfasciatus), Cocos island, Costa Rica. Pacific ocean.

Pascal Kobeh / Diver in a school of Bigeye trevally / jacks (Caranx sexfasciatus), Cocos island, Costa Rica. Pacific ocean. December 2010.

Pascal Kobeh / Diver in a school of Bigeye trevally / jacks (Caranx sexfasciatus), Cocos island, Costa Rica. Pacific ocean. December 2010.

Pascal Kobeh / Diver in front of a school of Bigeye trevally / jacks (Caranx sexfasciatus), Cocos island, Costa Rica. Pacific ocean. December 2010.

Pascal Kobeh / School of Bigeye trevally / jacks (Caranx sexfasciatus) Palau. Philippine Sea.

Pascal Kobeh / Grey reef shark (Carcharhinus amblyrhinchos) surrounded by Bigeye trevally / jacks (Caranx sexfasciatus) Palau. Philippine Sea.

Michael Pitts / Bigeye trevally (Caranx papuensis) school. Blue Corner, Palau, Western Pacific.

Doug Perrine / Wahoo (Acanthocybium solandri) off Keauhou, on the Kona Coast, Hawaii Island, USA.

Georgette Douwma / Bluefin jacks (Caranx sexfasciatus) following a hunting moray eel. Egypt, Red Sea.

Staffan Widstrand / Fish and ice sellers with Barracuda (Acanthocybium solandri) in Pulicat town, Pulicat Lake, Tamil Nadu, India, January 2013.

Jabruson / Fisherman holding a Wahoo (Acanthocybium solandri) an oceanic fish sometimes caught close to reefs and rocks, Wasini Island, off the coast of Kenya, February 2011

Jeff Rotman / Bluewater Hunter holds giant Wahoo fish / Pacific kingfish (Acanthocybium solandri) Mexico, Pacific Ocean. Model released.

Fred Bavendam / Bigeye Trevally (Caranx sexfasciatus) forming a dense school, Great Barrier Reef, Australia

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) school, 40 feet deep, Solomon Islands

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) school, 40 feet deep, Solomon Islands

Hiroya Minakuchi / Bigeye Trevally (Caranx sexfasciatus) school swimming off Sipadan Island, Celebes Sea, Borneo

Hiroya Minakuchi / Bigeye Trevally (Caranx sexfasciatus) school swimming off Sipadan Island, Celebes Sea, Borneo

Hiroya Minakuchi / Bigeye Trevally (Caranx sexfasciatus) school swimming over coral reef, Sipadan Island, Celebes Sea, Borneo

Mike Parry / Bigeye Trevally (Caranx sexfasciatus) schooling, Papua New Guinea

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) school, Osprey Reef, Coral Sea

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) schooling 40 feet deep, Solomon Islands

Birgitte Wilms / Bigeye Trevally (Caranx sexfasciatus) schooling 30 feet deep, Solomon Islands

Norbert Wu / Bigeye Trevally (Caranx sexfasciatus) gather in massive groups on coral reefs by day, hunt at night, Solomon Islands

Fred Bavendam / Bigeye Trevally (Caranx sexfasciatus) school, Bali, Indonesia

Fred Bavendam / Bigeye Trevally (Caranx sexfasciatus) school, Bali, Indonesia

Gary Bell/ Oceanwide / Bigeye Trevally (Caranx sexfasciatus) school under pier, Great Barrier Reef, Australia

Ralph Pace / Bigeye Trevally (Caranx sexfasciatus) school, Cabo Pulmo National Park, Baja California, Mexico

Ralph Pace / Bigeye Trevally (Caranx sexfasciatus) school, Cabo Pulmo National Park, Baja California, Mexico

Ralph Pace / Bigeye Trevally (Caranx sexfasciatus) school, Cabo Pulmo National Park, Baja California, Mexico

Ralph Pace / Bigeye Trevally (Caranx sexfasciatus) school, Cabo Pulmo National Park, Baja California, Mexico

David Fleetham / Pacific kingfish / Wahoo / Ono (Acanthocybium solandri), swimming just under the surface in deep water, Hawaii.

Pete Oxford / Bigeye Trevally (Caranx sexfasciatus) school over coral reef, Raja Ampat Islands, Indonesia

Roberto Rinaldi / Two men fishing from a boat, one catching a Wahoo (Acanthocybium solandri), La Réunion, Indian Ocean.

Norbert Wu / Bigeye Trevally (Caranx sexfasciatus) school, Revillagigedos Islands, Mexico

Noemie Stroh / Bigeye trevally (Caranx sexfasciatus) school circling, Withe Valley, Tahiti, French Polynesia, Pacific Ocean. April.

Noemie Stroh / Bigeye trevally (Caranx sexfasciatus) school, Cabo Pulmo National Park, Baja California Sur, Mexico, Pacific Ocean. December.

Noemie Stroh / Bigeye trevally (Caranx sexfasciatus) schooling above sandy seabed, Cabo Pulmo National Park, Baja California Sur, Mexico, Pacific Ocean. December.

Noemie Stroh / Tracking shot of Bigeye trevally (Caranx sexfasciatus) schooling, swimming away fast, White Valley, Tahiti, French Polynesia, Pacific Ocean. April.

Noemie Stroh / Bigeye trevally (Caranx sexfasciatus) aggregation. The fish are swimming near the surface. Roca Partida island, Revillagigedo archipelago, Mexico, Pacific Ocean. December.

Noemie Stroh / Bigeye trevally (Caranx sexfasciatus) schooling above reef, Withe Valley, Tahiti, French Polynesia, Pacific Ocean. April.

Alex Mustard / Schools of fish, including Bohar snappers (Lutjanus bohar), Yellow-spotted trevally (Carangoides orthogrammus) and Bigeye trevally (Caranx sexfasciatus) gathering adjacent to a colourful coral reef wi...

David Fleetham / Diver exploring the the coral encrusted Liberty wreck with a large school of Bigeye jacks (Caranx sexfasciatus) in the background, Tulamben, Bali, Indonesia, Indo-Pacific. Model released.

Henley Spiers / Starry-bodied guinea fowl pufferfish (Arothron meleagris) swimming among a huge shoal of Jackfish (Caranx sexfasciatus) Cabo Pulmo, Baja California Sur, Mexico, Pacific Ocean.

Franco Banfi / Shoal of Bigeye trevally (Caranx sexfasciatus) swimming above reef, Balicasag Island, South Bohol, Philippines, Pacific Ocean.

Lucas Bustamante / Bigeye trevallies (Caranx sexfasciatus) shoal. Darwin Island, Galapagos National Park, Pacific Ocean.

Sirachai Arunrugstichai / Bigeye trevally (Caranx sexfasciatus) swimming inside an artisanal fish trap, Adang-Rawi Archipelago, Andaman Sea, Satun, Thailand.

Sirachai Arunrugstichai / Bigeye trevally (Caranx sexfasciatus) and Giant trevally (Caranx ignobilis) swimming inside an artisanal fish trap of the indigenous Urak Lawoi tribe, Adang-Rawi Archipelago, Andaman Sea, Satun, Thail...