Reference Article: Facts about betta 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.
Scary portrayals of great whites in pop culture might lead some people to wonder if the world would be better off with no sharks at all.
Baby fish swam in schools 50 million years ago, according to this remarkable fossil held in a Japanese museum.
A fossil site in North Dakota preserves a unique snapshot of the minutes after an asteroid struck Earth around 66 million years ago.
What happened after the Cretaceous-ending asteroid struck Earth? A new fossil site may have answers.
A fish so mysterious that scientists named it the "hoodwinker" because it had eluded them for decades has washed ashore in California, thousands of miles from its home in the Southern Hemisphere.
Photographers from around the world competed to take home the top prizes in the 2019 Underwater Photographer of the Year contest.
As part of a drinking game, a 28-year-old man from the Netherlands attempted to swallow a living fish with some powerful natural defenses.
Lionfish are known for their breathtaking beauty, venomous sting and relentless invasion of tropical waters far from their native habitat.
The little sharks swim around inside their mom, switching between her multiple uteruses. When they get hungry they eat her unfertilized eggs.
In a strange, underwater video, a black mass drifts toward the camera. It's made up of a dark, spherical blob up front and a long, thin tail in the back. And it wriggles.
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