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.
Read More

Latest Articles

Forget the Flashlight: New Ninja Shark Species Lights up the Sea
lanternshark teeth
December 29th, 2015
The ocean can be a deep and dark place, but the so-called "ninja" shark can light up its surroundings with a dimly glowing head, a new report says.
Read More »
Ancient Human-Size Fish Breathed with Lungs
natural environment coelacanth
September 15th, 2015
Before the dinosaur age, the coelacanth — a hefty, mysterious fish that now breathes with its gills — sported a well-developed lung, a new study finds.
Read More »
Sexual Harassment in the Animal Kingdom? How Female Guppies Escape
Female and 2 Male Guppies
August 28th, 2015
When boy guppies pester the girls they like, it can actually make the female fish better at swimming away, a new study finds.
Read More »
Electric Embrace: Eels Curl Up to Supercharge Shocks
An eel curling with prey in its mouth.
October 28th, 2015
Electric eels have a shocking way of demobilizing their dinner.
Read More »
Eating More Fish Linked to Lower Risk of Depression
Salmon, olive oil, broccoli and lemon on a cutting board.
September 10th, 2015
Eat a lot of fish may lower the risk of depression, a new analysis suggests.
Read More »
One Fish, Two Fish, But is It True Fish? (Video)
fish naming rules, red snapper, grouper
July 28th, 2015
The menu says snapper, or grouper, or even puffer fish — but what is really on your plate?
Read More »
Fish Jaw in the Eye: Beachgoer Leaves with Odd Malady
Doctors found the jaws of a fish in the eyelid of a man who went swimming in the Red Sea. On the left, an image of the man's droopy eyelid. On the right, an image of the fish jaws removed during surgery.
September 16th, 2015
A tourist to the Red Sea left with an unwanted souvenir: a pair of fish jaws in his eyelid, according to a new report of the case.
Read More »
8-Foot-Long Bull Shark Pulled from Potomac River
A bull shark.
September 4th, 2015
Think sharks only live in the ocean? Think again.
Read More »