Fish

Find out everything there is to know about fish and stay updated on the latest news with the comprehensive articles, interactive features and fish pictures at LiveScience.com. Learn more about these fascinating creatures as scientists continue to make amazing discoveries about fish.
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Blind Cavefish Froze Its Internal Clock to Save Energy
The blind Mexican cavefish.
September 24th, 2014
Mexican cavefish saves energy by ditching circadian rhythm.
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Endangered Pupfish Could Vanish in 30 Years, Egg by Egg
Devils Hole pupfish
September 9th, 2014
The Devils Hole pupfish, an inch-long fish that sparked a Supreme Court battle, could go extinct in less than 30 years, a new modeling study concludes.
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Jellyfish Swarms: Bellwethers of Environmental Change
Jellyfish swarm in the Gulf of Mexico
September 11th, 2014
Human activities are promoting giant jellyfish swarms.
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Oversized Alien-Like 'Shrimp' Caught Off Florida Is ID'ed
An oversized alien-like creature, which is likely a mantis shrimp, was caught off Fort Pierce, Florida, recently.
September 5th, 2014
Florida fisherman catches more than he bargained for with giant "alien" shrimp.
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Lionfish's Terminator-Style Killing Alarms Scientists
a red lionfish
August 14th, 2014
When other predatory fish quit stalking their prey to look for easier targets, lionfish just keep on killing.
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Amazon's Biggest Fish Faces Threat of Extinction
Arapaima Fish
August 12th, 2014
Measuring 10 feet long and weighing in at more than 400 pounds, it's hard to imagine that the arapaima, the largest fish in the Amazon River basin, could ever go missing. But these huge fish are quickly disappearing from Brazilian waterways.
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