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SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliamentSpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliament
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WorldMilk shark A small coastal requiem shark found in tropical waters worldwide.Shark · Coasts and shelves · 1837 WorldCrocodile shark Smallest living mackerel shark with large eyes and oily liverShark · Open ocean · 1936 Sub-Saharan AfricaPrincess cichlid A cooperative schooling cichlid from Lake Tanganyika.Cichlid · Rivers and lakes 🇵🇾 Paraguay and 3 moreBuenos Aires tetra Hardy silver freshwater fish with red fins and a black tail mark.Other · Rivers and lakes · 1907 🇧🇷 Brazil and 4 moreGolden dorado A large predatory freshwater fish native to South America known for its golden colour.Other · Rivers and lakes WorldMegalodon Extinct giant mackerel shark from the Miocene to Pliocene epochs.Shark · Coasts and shelves · 1843 🇧🇷 Brazil and 3 moreTambaqui A large freshwater fish from South America known for its heavy body and seed-eating habits.Other · Rivers and lakes 🇧🇷 Brazil and 4 moreWolf fish A predatory freshwater ray-finned fish found across Central and South America.Other · Rivers and lakes 🇺🇸 United States and 1 moreMexican tetra A freshwater characin with surface and blind cave forms, studied for evolutionary biology.Other · Rivers and lakes 🇧🇷 Brazil and 1 moreElectric eel Neotropical freshwater fish capable of generating powerful electric shocks for hunting and defence.Eel · Rivers and lakes · 1766 WorldChaunax A genus of deep-sea anglerfishes known for their large mouths and luring habits.Shark · Deep sea · 1846 🇺🇸 United StatesEastern mosquitofish A small livebearing fish native to the eastern US, now invasive in many regions.Livebearer · Rivers and lakes · 1859 Serpae tetra 🇧🇷 Brazil and 4 moreSerpae tetra Small red freshwater fish from South AmericaOther · Rivers and lakes · 1882 WorldTetra Common name for small freshwater characiform fishes popular in aquaria.Livebearer · Rivers and lakes 🇨🇩 Democratic Republic of the CongoCongo tetra A colourful African freshwater fish kept in home aquaria for its bright scales and feathery tail.Other · Rivers and lakes · 1899 🇧🇷 Brazil and 2 moreBlack tetra Small freshwater characin with dark vertical barsOther · Rivers and lakes 🇧🇷 BrazilRummy-nose tetra Small Amazonian characin with a red head and striped tail.Other · Rivers and lakes · 1924 🇧🇷 BrazilEmber tetra Tiny orange freshwater fish from BrazilOther · Rivers and lakes · 1987 Bleeding heart tetra WorldBleeding heart tetra Small Amazonian fish with a red flank spotOther · Rivers and lakes · 1943 Latin America and the CaribbeanPenguinfish Small striped characin from South American riversOther · Rivers and lakes 🇧🇷 BrazilLemon tetra Small yellow freshwater fish from the Amazon basin.Other · Rivers and lakes 🇧🇷 Brazil and 2 moreCardinal tetra Small freshwater fish with a bright red belly and iridescent blue stripe.Other · Rivers and lakes · 1956 🇧🇷 BrazilBlack neon tetra Small freshwater characin with white and black stripes, popular in the aquarium trade.Other · Rivers and lakes 🇳🇬 Nigeria and 1 moreElectric catfish African catfish that generates strong electric shocksCatfish · Rivers and lakes WorldElectric ray Cartilaginous fish capable of producing electric discharges for hunting and defense.Ray · Coasts and shelves 🇪🇬 Egypt and 3 morePebbly fish A silver characin from African rivers and lakes.Other · Rivers and lakes 🇺🇸 United States and 1 moreBrook trout A colorful freshwater char native to eastern North America, known for its spotted pattern and status as a popular game fSalmonid · Rivers and lakes · 1814 🇺🇸 United States and 1 moreBull trout A large char native to cold rivers of northwestern North America.Salmonid · Rivers and lakes · 1836 🇨🇦 Canada and 1 moreLake trout Large freshwater char of northern lakesSalmonid · Rivers and lakes 🇺🇸 United States and 3 moreDolly Varden trout A cold-water char native to the North Pacific rim.Salmonid · Rivers and lakes · 1792 WorldSawfish Large rays with a toothed rostrum found in tropical coastal waters.Ray · Coasts and shelves WorldRequiem shark A family of migratory, live-bearing sharks found in warm seas worldwide.Shark · Coasts and shelves · 1896 🇬🇧 United Kingdom and 4 moreMarbled electric ray A benthic electric ray from the eastern Atlantic known for its powerful shocks and mottled brown skin.Ray · Coasts and shelves · 1810 WorldAtlantic torpedo A large electric ray from the Atlantic and Mediterranean capable of delivering powerful shocks.Ray · Coasts and shelves · 1835 WorldSpinner shark A fast requiem shark known for spinning leaps out of water.Shark · Coasts and shelves · 1839 🇺🇸 United States and 4 moreCaribbean reef shark Large requiem shark of western Atlantic coral reefsShark · Coasts and shelves · 1876 🇦🇺 Australia and 1 moreSpeartooth shark Rare river shark of northern Australia and New GuineaShark · Rivers and lakes · 1839 Northern river shark 🇦🇺 Australia and 1 moreNorthern river shark Rare requiem shark of northern Australian and Papuan riversShark · Rivers and lakes · 2008 WorldPigeye shark A robust coastal requiem shark often confused with the bull shark.Shark · Coasts and shelves · 1839 WorldKitefin shark A deep-sea squaliform shark known for its bioluminescence and large oil-filled liver.Shark · Deep sea · 1788

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