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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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WorldPelican eel A deep-sea eel with a massive hinged jaw and ultra-black skin found in all oceans.Eel · Deep sea WorldHumpback anglerfish Deep-sea black seadevil with a glowing lureOther · Open ocean · 1863 WorldArowana Freshwater bony fish with a toothed bone in the mouth and air-breathing ability.Ancient · Rivers and lakes · 1831 WorldKillifish Small egg-laying fish known for hardiness and short lifespansLivebearer · Rivers and lakes 🇦🇷 Argentina and 4 moreArgentinian silverside A large, adaptable silverside native to South America.Other · Rivers and lakes 🇦🇺 Australia and 2 moreRainbowfish Small colourful freshwater fish from Australia and New GuineaOther · Rivers and lakes · 1894 🇲🇽 Mexico and 3 moreXiphophorus A genus of small livebearing fish native to Mexico and Central America, known for aquarium use and genetic research.Livebearer · Rivers and lakes WorldRasbora A diverse genus of small freshwater fish native to South and Southeast Asia.Carp · Rivers and lakes · 1822 WorldDanio A genus of small striped freshwater fish from Asia kept in aquaria.Other · Rivers and lakes · 1822 WorldHagfish Eel-shaped jawless marine animals known for producing vast amounts of slime.Eel · Open ocean WorldGrenadiers Deep-sea gadiform fish with slender bodies and long tails, found globally in ocean depths.Other · Deep sea · 1765 WorldOarfish Extremely long pelagic fish known for their ribbon-like bodies and association with sea serpent myths.Other · Open ocean · 1772 WorldAnglerfish Ray-finned fish using a modified dorsal fin ray as a lure to catch prey.Other · Coasts and shelves · 1829 WorldViperfish Deep-sea fish with fang-like teeth and bioluminescent lures in the genus Chauliodus.Other · Open ocean · 1801 WorldLanternfish Small bioluminescent mesopelagic fish found in oceans worldwide.Other · Open ocean WorldBristlemouths A family of abundant deep-sea fish with bioluminescent organs and bristle-like teeth.Other · Open ocean WorldBarreleye Deep-sea fish with tubular eyes and a light-producing anusOther · Open ocean WorldCrestfish Deep-sea ribbon fish with a head crest and ink sacsOther · Open ocean WorldChaunax A genus of deep-sea anglerfishes known for their large mouths and luring habits.Shark · Deep sea · 1846 WorldStareater Small deep-sea fish with a red glowing lureOther · Deep sea WorldGlasshead barreleye Deep-sea fish with mirror-based eyesOther · Open ocean WorldRibbonfish Deep-sea lampriforms with long, tape-like bodiesOther · Open ocean WorldHairy angler A deep-sea anglerfish with thread-like fins found in the Atlantic and Pacific Oceans.Shark · Deep sea · 1930 WorldThaumatichthys A genus of deep-sea anglerfish with a unique internal lure and hinged jaws.Shark · Deep sea · 1908 WorldDeepsea lizardfish A deep-ocean predator with a flattened head and large eyes found in tropical seas worldwide.Other · Deep sea · 1878 WorldTelescopefish Deep-sea fish with tubular eyes and an elongated tail fin.Other · Deep sea · 1901 Titicaca orestias 🇵🇪 Peru and 1 moreTiticaca orestias Largest killifish of Lake Titicaca, likely extinct.Livebearer · Rivers and lakes WorldAtlantic footballfish Deep-sea anglerfish with a glowing lureOther · Open ocean · 1837 Sabertooth fish WorldSabertooth fish Small deep-sea aulopiforms with large recurved teeth and tubular eyes.Other · Deep sea Mariana snailfish WorldMariana snailfish A deep-sea fish from the Mariana Trench with transparent skin and large eggs.Other · Deep sea · 2017 🇨🇳 China and 1 moreMandarin fish Freshwater predatory perch native to East AsiaPerch-like · Rivers and lakes · 1855 East AsiaAmur pike A spotted freshwater pike native to east Asia.Other · Rivers and lakes 🇹🇭 Thailand and 2 moreSiamese mud carp Freshwater cyprinid native to Mekong and Chao Phraya riversCarp · Rivers and lakes 🇨🇳 China and 3 moreAsian swamp eel A freshwater, air-breathing fish native to Asia and introduced elsewhere.Eel · Rivers and lakes Southeast AsiaGiant snakehead A large freshwater predator from Southeast Asia known for air breathing and invasive potential.Other · Rivers and lakes 🇷🇺 Russia and 1 moreRuffe A small, aggressive freshwater fish native to Eurasia that has become a major invasive pest in North America.Perch-like · Rivers and lakes · 1758 EuropeEuropean bullhead Small freshwater sculpin found in European rivers and streams.Other · Rivers and lakes WorldNinespine stickleback Small freshwater fish with variable spines found across the Northern Hemisphere.Other · Rivers and lakes WorldThree-spined stickleback Small northern fish known for rapid evolution and complex breeding.Other · Rivers and lakes WorldFeatherbacks and knifefishes Freshwater bony-tongued fishes with long anal finsOther · Rivers and lakes WorldCretoxyrhina Extinct Cretaceous mackerel shark known as the Ginsu sharkShark · Open ocean · 1822 🇷🇺 Russia and 4 moreSiberian sturgeon Large freshwater sturgeon native to Siberian riversAncient · Rivers and lakes 🇦🇴 Angola and 3 moreMarbled lungfish African lungfish with the largest known animal genome, found in East and Central Africa.Ancient · Rivers and lakes 🇮🇩 IndonesiaIndonesian coelacanth A rare brown deep-sea fish found in Indonesian waters.Ancient · Open ocean · 1999 🇸🇳 Senegal and 3 moreWest African lungfish Air-breathing freshwater fish from AfricaAncient · Rivers and lakes 🇿🇦 South Africa and 4 moreWest Indian Ocean coelacanth Rare deep-sea fish with blue scales and limb-like fins.Ancient · Deep sea · 1938 WorldSnailfish A family of marine ray-finned fishes found from shallow coasts to the deepest ocean trenches.Other · Coasts and shelves · 1861 WorldMarine hatchetfish Small deep-sea fish with a distinctive compressed body shape and bioluminescent camouflage.Other · Open ocean 🇬🇧 United KingdomSchelly Rare whitefish of the English Lake DistrictSalmonid · Rivers and lakes 🇦🇹 Austria and 4 moreEuropean mudminnow Small freshwater fish from Central and Eastern EuropeOther · Rivers and lakes 🇬🇧 United Kingdom and 1 moreFerox trout Large predatory trout native to deep glacial lakes in Britain and Ireland.Salmonid · Rivers and lakes · 1835 🇩🇪 Germany and 4 moreZingel A fast-water perch from southeastern Europe.Perch-like · Rivers and lakes · 1766 🇬🇧 United KingdomGwyniad Rare whitefish found only in one Welsh lakeSalmonid · Rivers and lakes · 1848 🇷🇺 Russia and 4 moreSabre carp A silvery surface feeder from Eastern Europe and Asia.Carp · Rivers and lakes 🇦🇹 Austria and 4 moreStreber A small freshwater perch found in fast-flowing European rivers.Perch-like · Rivers and lakes 🇺🇸 United States and 2 morePupfish Small killifish known for surviving in extreme isolated waters.Livebearer · Rivers and lakes 🇺🇸 United StatesCrappie Two species of North American freshwater sunfish prized by anglers for sport and food.Perch-like · Rivers and lakes Latin America and the CaribbeanLeporinus South American freshwater fish genus in the Anostomidae familyOther · Rivers and lakes 🇨🇦 Canada and 1 moreLake chub A small cold-water minnow native to Canada and the northern US.Carp · Rivers and lakes 🇧🇷 Brazil and 1 moreArapaima Large freshwater fish from the Amazon basin known for its size and air-breathing ability.Ancient · Rivers and lakes WorldSnakehead Elongated freshwater predators with air-breathing organs found in Asia and Africa.Other · Rivers and lakes 🇷🇺 RussiaCaspian roach A brackish water fish from the Caspian Sea region, widely consumed as a dried snack.Carp · Estuaries and mangroves 🇧🇷 BrazilBanded leporinus A striped freshwater fish from the Amazon kept in home tanks and occasionally caught by anglers.Other · Rivers and lakes 🇯🇵 JapanNigorobuna Wild carp from Lake Biwa used for fermented sushi.Carp · Rivers and lakes 🇨🇺 CubaCuban gar Large tropical freshwater predator native to western Cuba.Other · Rivers and lakes 🇹🇭 Thailand and 3 moreSiamese tigerfish A critically endangered freshwater perch from Indochina.Perch-like · Rivers and lakes · 1998 🇨🇳 China and 4 moreChinese hooksnout carp A small freshwater minnow native to East and Southeast Asia.Carp · Rivers and lakes 🇷🇺 RussiaComephorus Two species of pelagic sculpins endemic to Lake Baikal in Russia.Other · Rivers and lakes · 1800 🇷🇺 Russia and 1 moreBaikal black grayling A Siberian freshwater salmonid found in Lake Baikal and surrounding river systems.Salmonid · Rivers and lakes 🇺🇸 United StatesAmerican paddlefish Ancient freshwater fish with a sensory snout and filter-feeding habits.Ancient · Rivers and lakes · 1792 🇿🇦 South Africa and 1 moreCoelacanth Ancient lobe-finned fish thought extinct until rediscovered in the twentieth century.Ancient · Coasts and shelves · 1839 🇦🇺 AustraliaAustralian lungfish Ancient air-breathing fish endemic to Queensland rivers, known for its longevity and living fossil status.Ancient · Rivers and lakes · 1871 Tecopa pupfish 🇺🇸 United StatesTecopa pupfish Extinct subspecies of killifish from California hot springs.Livebearer · Rivers and lakes · 1948 🇸🇳 Senegal and 3 moreSenegal bichir Ancient African fish that breathes air and walks on landAncient · Rivers and lakes 🇺🇸 United States and 2 moreLongnose gar A primitive ray-finned fish with a long snout and armored scales found in North America.Other · Rivers and lakes · 1758 🇺🇸 United StatesPallid sturgeon An endangered North American sturgeon species native to the Missouri and Mississippi river basins.Ancient · Rivers and lakes · 1905 🇺🇸 United StatesShovelnose sturgeon Smallest North American freshwater sturgeon, known for its shovel-shaped snout and caviar production.Ancient · Rivers and lakes · 1820 🇺🇸 United States and 1 moreShortnose sturgeon A small, endangered North American sturgeon with a short snout.Ancient · Rivers and lakes · 1818 🇺🇸 United States and 1 moreLake sturgeon A large, long-lived freshwater fish native to North America.Ancient · Rivers and lakes 🇦🇺 AustraliaLungfish Ancient freshwater fish that breathe air and have lobed fins.Ancient · Rivers and lakes 🇺🇸 United States and 1 moreAtlantic sturgeon A large anadromous fish native to the western Atlantic Ocean and its river systems.Ancient · Rivers and lakes 🇷🇺 RussiaSterlet A small Eurasian sturgeon found in rivers flowing to the Black, Azov, and Caspian seas.Ancient · Rivers and lakes · 1758 🇺🇸 United States and 1 moreGreen sturgeon A large anadromous fish native to the northern Pacific Ocean.Shark · Coasts and shelves 🇷🇺 Russia and 2 moreKaluga A massive semi-anadromous sturgeon from the Amur River basin hunted for caviar.Ancient · Rivers and lakes · 1872 🇺🇸 United StatesWhite sucker A common North American freshwater cypriniform fish with fleshy lips used for bottom feeding.Other · Rivers and lakes · 1803 🇧🇷 Brazil and 4 moreWolf fish A predatory freshwater ray-finned fish found across Central and South America.Other · Rivers and lakes 🇺🇸 United States and 2 moreRock bass A small, red-eyed freshwater sunfish native to North America.Perch-like · Rivers and lakes 🇧🇷 Brazil and 4 moreArapaima Giant air-breathing freshwater fish of the AmazonOther · Rivers and lakes · 1822 🇨🇦 Canada and 1 moreGoldeye A silver freshwater fish known for its smoked culinary form.Other · Rivers and lakes WorldLamprey Jawless fish with a sucking mouth found in temperate waters worldwide.Ancient · Rivers and lakes 🇺🇸 United States and 1 morePacific lamprey An anadromous parasitic jawless fish found along the Pacific Rim.Ancient · Rivers and lakes · 1872 🇺🇸 United StatesMooneye A family of large-eyed North American fish known for their metallic eye shine.Other · Rivers and lakes · 1819 WorldBichir Ancient African ray-finned fish with multiple dorsal finlets and lung-like air breathing organs.Ancient · Rivers and lakes 🇧🇯 Benin and 4 moreSaddled bichir A large African freshwater fish with primitive lungs and multiple dorsal finlets.Ancient · Rivers and lakes · 1845 🇨🇳 ChinaChinese paddlefish A giant freshwater predator from China that is now extinct.Ancient · Rivers and lakes · 1862 🇺🇸 United States and 2 moreGar Ancient armored fish with lung-like swim bladders found in North American waters.Ancient · Rivers and lakes · 1758

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