Whitetip Reef Shark (Triaenodon obesus), resting motionless under a ledge whilst surrounded by schooling Cardinalfish. Photo taken on the Great Barrier Reef, Queensland, Australia. © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Golden Trevelly (Gnathonodon speciosus) swimming as 'pilot' fish with a Lemon Shark (Negaprion acutidens) also known as Sharptooth Shark. This Trevelly species is found throughout the Indo-Pacific. Photo taken Heron Island Great Barrier Reef Australia © Gary Bell / OceanwideImages.com
Scuba Diver with schooling Chevron Barracuda (Sphyraena qenie). Northern Great Barrier Reef, Queensland, Australia © Bob Halstead / OceanwideImages.com
Schooling Hardyhead Baitfish around jetty pylons. Papua New Guinea © Bob Halstead / OceanwideImages.com
Schooling Pinjalo Snapper (Pinjalo lewisi). Indo-Pacific © Bob Halstead / OceanwideImages.com
Schooling Hardyhead Baitfish. Indo-Pacific © Bob Halstead / OceanwideImages.com
Scuba Diver with Big-eye Trevally (Caranx sexfasciatus) schooling under a boat. Also known as Horse-eye Jacks. Found throughout the Indo-Pacific. Photo taken at the Great Barrier Reef Queensland Australia. © Bob Halstead / OceanwideImages.com
Scuba Diver with Big-eye Trevally (Caranx sexfasciatus) schooling under a boat. Also known as Horse-eye Jacks. Found throughout the Indo-Pacific. Photo taken at the Great Barrier Reef Queensland Australia. © Bob Halstead / OceanwideImages.com
Big-eye Trevally (Caranx sexfasciatus) schooling under a boat. Also known as Horse-eye Jacks. Found throughout the Indo-Pacific. Photo taken at the Great Barrier Reef Queensland Australia. © Bob Halstead / OceanwideImages.com
Scuba Diver with Big-eye Trevally (Caranx sexfasciatus) schooling under a boat. Also known as Horse-eye Jacks. Found throughout the Indo-Pacific. Photo taken at the Great Barrier Reef Queensland Australia. © Bob Halstead / OceanwideImages.com
Bigeye Sea Perch (Lutjanus lutjanus). Found throughout the Indo-West Pacific. Photo taken at the Great Barrier Reef, Queensland, Australia. © Bob Halstead / OceanwideImages.com
Scuba Diver observing a school of Big-eye Trevally (Caranx sexfasciatus) sheltering under a jetty. Also known as Horse-eye Jacks. Found throughout the Indo-Pacific. Photo taken at the Great Barrier Reef Queensland Australia. © Bob Halstead / OceanwideImages.com
Scuba Diver observing a school of Big-eye Trevally (Caranx sexfasciatus) sheltering under a jetty. Also known as Horse-eye Jacks. Found throughout the Indo-Pacific. Photo taken at the Great Barrier Reef Queensland Australia. © Bob Halstead / OceanwideImages.com
Shark Mackerel (Grammatorcynus bicarinatus). Found throughout tropical Australian waters, usually in the vicinity of coral reefs. Photo taken on the Great Barrier Reef, Queensland, Australia. © Bob Halstead / OceanwideImages.com
Giant Grouper (Epinephelus lanceolatus) amongst baitfish. Also known as Queensland Grouper. Great Barrier Reef, Queensland, Australia © Bob Halstead / OceanwideImages.com
Scuba diver observing schooling Big-eye Snapper (Lutjanus lutjanus). Found throughout the Indo-West Pacific. Photo taken on the Great Barrier Reef, Queensland, Australia. © Bob Halstead / OceanwideImages.com
Schooling Marr's Fusilier (Pterocaesio marri) amongst an Acropora coral garden. Acropolis Reef, northern Great Barrier Reef, Queensland, Australia © Bob Halstead / OceanwideImages.com
Bronze Whaler Shark (Carcharhinus brachyurus) and Skipjack Tuna (Katsuwonus pelamis), feeding on a sardine baitball. Cape Point, South Africa. © Chris & Monique Fallows / OceanwideImages.com
Bronze Whaler Shark (Carcharhinus brachyurus) and Skipjack Tuna (Katsuwonus pelamis), feeding on a sardine baitball. Cape Point, South Africa. © Chris & Monique Fallows / OceanwideImages.com
Bronze Whaler Shark (Carcharhinus brachyurus), feeding on a sardine baitball. Photo taken at the Sardine Run, Cape Point, South Africa. © Chris & Monique Fallows / OceanwideImages.com
Bronze Whaler Shark (Carcharhinus brachyurus), feeding on a sardine baitball. Photo taken at the Sardine Run, Cape Point, South Africa. © Chris & Monique Fallows / OceanwideImages.com
Bronze Whaler Shark (Carcharhinus brachyurus), feeding on a sardine baitball. Photo taken at the Sardine Run, Cape Point, South Africa. © Chris & Monique Fallows / OceanwideImages.com
Schooling Mangrove Snapper (Lutjanus griseus). Three Sisters Spring, Crystal River, Florida, USA. Found East and West Atlantic © Michael Patrick O'Neill / OceanwideImages.com
School of Big-eye Trevally (Caranx sexfasciatus). Rangiroa Atoll French Polynesia. © Michael Patrick O'Neill / OceanwideImages.com
Schooling Paddletail (Lutjanus gibbus). French Polynesia. Found throughout the Great Barrier Reef, SE Asia and Indo-Central Pacific © Michael Patrick O'Neill / OceanwideImages.com
Schooling Big-eye Trevally (Caranx sexfasciatus). Rangiroa Atoll French Polynesia. © Michael Patrick O'Neill / OceanwideImages.com
Schooling Atlantic Spadefish (Chaetodipterus faber). Juno Beach, Florida, USA. Found throughout West Atlantic © Michael Patrick O'Neill / OceanwideImages.com
Schooling Crescent-Tail Bigeye, (Priacanthus hamrur). French Polynesia. Found on the Great Barrier Reef, Indo-west Pacific and Indo-central Pacific © Michael Patrick O'Neill / OceanwideImages.com
Schooling Atlantic Spadefish (Chaetodipterus faber). Palm Beach, Florida, USA. Found throughout West Atlantic. © Michael Patrick O'Neill / OceanwideImages.com
Schooling Cottonwick (Haemulon melanurum). Juno Beach, Florida, USA. Found throughout West Atlantic. © Michael Patrick O'Neill / OceanwideImages.com
Schooling White Mullet (Mugil curema). Riviera Beach, Florida, USA. Found throughout West Atlantic. © Michael Patrick O'Neill / OceanwideImages.com
School of Mangrove Snapper (Lutjanus griseus) in the Three Sisters Spring, Crystal River, Florida, USA. This marine fish can survive in the spring's freshwater. © Michael Patrick O'Neill / OceanwideImages.com
School of Mangrove Snapper (Lutjanus griseus) in the Three Sisters Spring, Crystal River, Florida, USA. This marine fish can survive in the spring's freshwater. © Michael Patrick O'Neill / OceanwideImages.com
School of Blotched Bigeye (Heteropriacanthus cruentatus). Also known as Glassy, Big-eye Snapper and Duskyfin Bigeye. Found throughout Indo-C. Pacific, including Great Barrier Reef. Photo taken Palm Beach, Florida, USA © Michael Patrick O'Neill / OceanwideImages.com
Common Snook (Centropomus undecimalis) schooling during a cold front in Homosassa Springs, Florida, USA © Michael Patrick O'Neill / OceanwideImages.com
Big-eye Trevally (Caranx sexfasciatus). Found throughout Indo Pacific. Photo taken in Komodo National Park Indonesia. © Michael Patrick O'Neill / OceanwideImages.com
School of Ribbon Sweetlips (Plectorhynchus polytaenia). Also known Striped and Yellow-ribbon Sweetlips. Found throughout Indo Pacific. This photo was taken in Komodo National Park, Indonesia, where over 1,000 types of fish occur. © Michael Patrick O'Neill / OceanwideImages.com
School of Striped Sweetlips (Plectorhynchus polytaenia). Also known Striped and Yellow-ribbon Sweetlips. Found throughout Indo Pacific. This photo was taken in Komodo National Park, Indonesia, where over 1,000 types of fish occur. © Michael Patrick O'Neill / OceanwideImages.com
School of Diagonal-banded Sweetlips (Plectorhinchus lineatus) and Oriental Sweetlips (Plectorhinchus vittatus). Found throughout Indo Pacific. This photo was taken in Komodo National Park, Indonesia, where over 1,000 types of fish occur. © Michael Patrick O'Neill / OceanwideImages.com
Glassy Sweepers (Dmpheris schomburgki) gather outside a defunct sewage pipe offshore Palm Beach, Florida, USA. Sewage remains a problem in Palm Beach County Reefs, with coastal utilities denying their sewage outfalls damage local marine life. © Michael Patrick O'Neill / OceanwideImages.com
Amberjack (Seriola dumerili), schooling juveniles. This fast swimming pelagic fish is excellent eating and commercially fished. It is found throughout the Alantic, Pacific and Indian Oceans. © Michael Patrick O'Neill / OceanwideImages.com
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