fish

If you blurted out "cheetah!" you're only a little bit right.

Sunfish are the biggest bony fish in the sea, but this species managed to elude scientists for centuries.

The Guardian is designed to capture the hordes of lionfish devastating reefs and fish populations in the Atlantic Ocean.

The eel babies join wild boars, deer, foxes, lobsters, butterflies, whales, and their own parents in the magneto-orienteering club.

A black-and-white image of a newly discovered faceless fish.

The “faceless cusk” is rarely seen … and it probably can’t see us.

The microbiome of youth could have anti-aging properties when transplanted into older individuals.

Inosipmax via Wikimedia Commons // CC BY-SA 4.0

They don't look half bad underwater.

On any given day, aquarium employees might be asked to swim with sharks, train sea lions, or poke a gassy sea horse.

There are plenty of fish in the sea, but few are more astounding than the coelacanths—a group that defied extinction and turned the scientific world upside down.

Mirrors on the fishes’ bellies help control and direct their glow.

That makes them the longest-living vertebrates on the planet by 200 years. They may not even reach sexual maturity until age 150.

Tohru Murakami via Flickr Creative Commons // CC BY-NC 2.0

Researchers say the behavior of zebrafish, long used as a proxy for humans, is significantly altered by infection with a common parasite.

Researchers say a large gland in the swordfish’s skull produces oil to make the fish super hydrodynamic.

A conversation with Jonathan Balcombe, author of the new book 'What a Fish Knows.'

3. Don't eat Dory.

Flickr, NOAA Ocean Explorer // CC BY-SA 2.0

Study shows the ability to glow has arisen many more times than was previously believed.

Queen Elizabeth, Al Gore, and Tony Soprano all had one.

harum.koh via Wikimedia Commons // CC BY-SA 2.0

Just when you thought it was safe to go back in the water, right?

Illustrator unknown via Wikimedia Commons // Public Domain

Archerfish join the ranks of non-human animals that can tell humans apart.

Elias Levy via Wikimedia Commons // CC BY 2.0

New York's wildlife could be even cooler than we thought.

Toll Barn Veterinary Centre Limited via Facebook

When a fish needs a surgical procedure, veterinarians are there to take up the challenge.

Don't take the bait. A (reasonable) portion of fish isn't going to hurt you.

One cell of this fish can express one of 5000 possible shades.

Go ahead, order a side of those crunchies.

What Is the Fastest Animal in the World?

Australian Scientists Discover First New Species of Sunfish in 125 Years

The Roomba's Creator Invented an Underwater Vacuum That Sucks Up Invasive Lionfish

Baby Eels Migrate by Following Magnetic Fields

Deep-Sea Mission Nets a Fish With No Face

The Poop of Young Fish Can Help Older Ones Live Longer

7 Unattractive Facts About Blobfish

11 Behind-the-Scenes Secrets of Aquariums

11 Fishy Facts About Coelacanths

Unique Glow Helps Identify Two New Fish Species

Scientists Say Greenland Sharks May Live 400 Years

A Fish Parasite May Have Compromised Decades of Behavioral Experiments

Swordfish May Grease Their Faces to Swim Faster

7 Things You Never Knew About Fish

Understanding Dory: 5 Facts About the Pacific Blue Tang

Bioluminescence Evolved in Fish at Least 27 Times, Scientists Say

Something Fishy: Big Mouth Billy Bass

When Cornered, Electric Eels Rise Out of the Water to Attack

These Fish Can Recognize Human Faces

Great White Sharks May Travel to Long Island to Mate

7 Incisive Cases of Fish Surgery

When to Worry About Mercury in Seafood

This Fluorescent Zebrafish Can Help Scientists Understand How Skin Heals

9 Swashbuckling Facts About Long John Silver’s