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SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It Again OceanEye to eye with Britain's hidden sharks at SharkAdemy - Oceanographic RiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at all OceanShedd Aquarium Sends Shark Eggs to Bolster Wild Populations SpeciesA 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 Conservation OceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray Area SpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow Reductions FisheriesAdams River Salmon Run in Thompson-Nicola IndiaHilsa production dropped 26% in five years, fisheries minister tells parliament SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It Again OceanEye to eye with Britain's hidden sharks at SharkAdemy - Oceanographic RiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at all OceanShedd Aquarium Sends Shark Eggs to Bolster Wild Populations SpeciesA 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 Conservation OceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray Area SpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow Reductions FisheriesAdams River Salmon Run in Thompson-Nicola IndiaHilsa production dropped 26% in five years, fisheries minister tells parliament

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Blue Revolution

🇦🇺 AustraliaLungfish Ancient freshwater fish that breathe air and have lobed fins.Ancient · Rivers and lakes

WorldHaplochromis A large ray-finned fish genus from East Africa known for rapid evolution and aquarium popularity.Cichlid · Rivers and lakes · 1888

🇺🇸 United States and 1 moreMexican tetra A freshwater characin with surface and blind cave forms, studied for evolutionary biology.Other · Rivers and lakes

🇮🇩 IndonesiaIndonesian coelacanth A rare brown deep-sea fish found in Indonesian waters.Ancient · Open ocean · 1999

WorldThree-spined stickleback Small northern fish known for rapid evolution and complex breeding.Other · Rivers and lakes 🇨🇦 Canada and 1 moreAtlantic hagfish A jawless marine scavenger known for its slime and lack of true eyes.Ancient · Deep sea · 1758

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

Lungfish: Unknown author, CC BY-SA 2.5, source
Haplochromis: User:Haplochromis, CC BY-SA 3.0, source
Mexican tetra: User:Haplochromis, CC BY-SA 3.0, source
Indonesian coelacanth: Unknown author, CC BY-SA 2.5, source
Three-spined stickleback: Gilles San Martin, CC BY-SA 2.0, source

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Every Monday: the fish of the day, new pages on EveryFish, and the conferences and anniversaries of the week ahead.