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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Freshwater Fish are Disappearing: Where is the Global Response? (Op-Ed)
Coho salmon collection
January 26th, 2015
Fish are getting a "voice," and taking it to a global stage.
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6 Strangest Hearts in the Animal Kingdom
Squid heart
February 13th, 2015
Hearts have become iconic symbols of Valentine's Day, but when it comes to hearts in the real world, one size doesn't fit all — particularly in the animal kingdom.
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Venomous Cone Snails Weaponize Insulin to Stun Prey
cone snail with fish
January 23rd, 2015
At least two species of cone snail have turned insulin into an underwater weapon, a new study finds. When these stealthy aquatic snails approach their prey, they release insulin, a hormone that can cause blood sugar levels to plummet.
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Animal Sex: How Anglerfish Do It
Anglerfish
January 6th, 2015
Anglerfish mating involves biting, tissue fusion and the complete lack of mate choice by females.
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Modern Worldwide Danger Blooms from Ancient Bacteria
Toxic bloom in Lake Taihu, China
December 9th, 2014
Research results will have implications for many other lakes in the U.S. and around the world that are also experiencing toxic blooms.
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Freshwater Fish are Floundering (Gallery)
Lake Michigan charter boat
January 26th, 2015
What would the world look like without freshwater fish?
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Wow! The Most Amazing Images in Science This Week
A two-headed salamander tadpole.
December 13th, 2014
The connection between dinosaurs and birds, strange new balloon-like fossils and an orphaned otter pup are just a few of the awesome photos in Science this week.
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