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| Upside-down Jellyfish (Cassiopeia andromeda). Unlike other jellyfish that hunt for food, this jellyfish depends on unicellular algae, zooxanthellae, for nutrition. The jellyfish sits upside down so the algae absorbs sunlight. Great Barrier Reef, Australia |
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| Irukandji Jellyfish (possibly: Alatina mordens). This is a dangerous jellyfish, with a bell length around 10cm long. It has been sighted on the outer Great Barrier Reef, Australia, and Papua New Guinea. Milne bay, Papua New Guinea. Coral Triangle. |
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| Irukandji Jellyfish (possibly: Alatina mordens). This is a dangerous jellyfish, with a bell length around 10cm long. It has been sighted on the outer Great Barrier Reef, Australia, and Papua New Guinea. Milne bay, Papua New Guinea. Coral Triangle. |
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| Jellyfish (possibly: Pelagia noctiluca). This jellyfish is found on the Great Barrier Reef and Queensland coast, also Papua New Guinea. Photo was taken at Milne Bay, Papua New Guinea. Within the Coral Triangle. |
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| Upside-down Jellyfish (Cassiopeia andromeda). Unlike other jellyfish that hunt for food, this jellyfish depends on unicellular algae, zooxanthellae, for nutrition. The jellyfish sits upside down so the algae absorbs sunlight. Great Barrier Reef, Australia |
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| Crown Jellyfish (Netrostoma setouchina). Indo-Pacific |
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| Blubber Jellyfish (Catostylus mosaicus). Also known as Jelly Blubber. Found in intertidal estuaries and coastal waters of eastern Australia. Photo taken on the Great Barrier Reef, Queensland, Australia |
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| Lemon Shark (Negaprion acutidens). Also knwn as Sharptooth Shark. Found throught the Indian Ocean and central Pacific, including tropical Australian waters. Occasionally sighted off Perth (WA). Photo taken at Heron Island, Great Barrier Reef, Australia. |
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| Lemon Shark (Negaprion acutidens). Also known as Sharptooth Shark. Found throught the Indian Ocean and central Pacific, including tropical Australian waters. Occasionally sighted off Perth (WA). Photo taken at Heron Island, Great Barrier Reef, Australia. |
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| Lemon Shark (Negaprion acutidens). Also known as Sharptooth Shark. Found throught the Indian Ocean and central Pacific, including tropical Australian waters. Occasionally sighted off Perth (WA). Photo taken at Heron Island, Great Barrier Reef, Australia. |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Leopard Shark (Stegastoma fasciatum). Also known as Zebra Shark. Great Barrier Reef, Queensland, Australia |
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| Leopard Shark (Stegastoma fasciatum). Also known as Zebra Shark. Photo taken on the Great Barrier Reef, Queensland, Australia. |
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| Scuba Diver observing a Leopard Shark (Stegastoma fasciatum). Also known as Zebra Shark. Photo taken on the Great Barrier Reef, Queensland, Australia. |
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| Spiny Lobster (Panulirus penicillatus). Also known as Coral Crayfish. Great Barrier Reef, Queensland, Australia |
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| Painted Rock Lobster (Panulirus versicolor). Common throughout the Indo-West Pacific, including the Great Barrier Reef, Australia. Within the Coral Triangle. |
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| Schooling Anchovy (Engraulis australis) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Mangrove Jack (Lutjanus argentimaculatus) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Snub-nosed Dart (Trachinotus blochii) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Schooling Anchovy (Engraulis australis) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Mangrove Jack (Lutjanus argentimaculatus) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Schooling Lined Rabbitfish (Siganus lineatus), also known as Golden-lined Spinefoot, sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Schooling Anchovy (Engraulis australis) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Schooling Anchovy (Engraulis australis) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Schooling Anchovy (Engraulis australis) sheltering amongst Mangrove roots (Rhizophora stylosa) during high tide. Low Isle, Great Barrier Reef, Queensland, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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| Giant Oceanic Manta Ray (Manta birostris). Found throughout the world in tropical and subtropical waters, but also can be found in temperate waters. Largest type of ray in the world, recorded at over 7.6 metres (26ft) across. Great Barrier Reef, Australia |
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