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Fish
Fish are an incredibly diverse group of animals. Read these articles to find out about all kinds of unique and different fish.
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Swordfish Are the Natural-born Gladiators of the Sea
The swordfish's nose might look crazy weird, but these gladiators of the sea are perfectly outfitted for ocean battle.
The Predatory Snakehead Fish, or 'Frankenfish,' Can 'Walk' on Dry Land
The snakehead fish can breathe air, double its population in 15 months and has a huge appetite, which is not a good thing for native species.
Humuhumunukunukuapua'a: A Long Name for a Little Fish
Humuhumunukunukuapua'a, the colorful little fish with the craaaaazy long name, is Hawaii's state fish, but it wasn't always.
Basking Sharks Look Ferocious, But Prefer Plankton to People
The basking shark, an endangered species, may look like a fearsome predator, but is actually a filter-feeder, gathering zooplankton and other tiny animals, such as shrimp, in bulk as it roams the seas with a wide open mouth.
Piranhas: Toothy Nippers With a Bad Reputation
Piranhas are some of the most feared fish in the world, but is their reputation for ferocity a bit overblown?
Do Fish Get Thirsty?
They're swimming in water all day so how could they ever get thirsty? The answer might surprise you.
Alligator Gar: 100 Million Years Old and Still Kicking
The prehistoric looking alligator gar is sometimes referred to as a "living fossil" and, while they may look threatening, are harmless to anything larger than themselves.
Koi Fish: Shining Jewels of the Water Garden
The colorful superstars of backyard water gardens are actually ornamental varietals of domesticated carp.
Dive Inside the Weird World of the Ocean Sunfish
It's one of the gentle giants of the sea. It loves sunbathing, dining on crabs and taking deep dives to the ocean floor.
Blobfish: World's Ugliest Animal or Someone's Grandpa?
The blobfish is actually pretty average looking in its normal habitat.
One Fish, Two Fish, Red Fish, Smart Blue Fish
The cleaner wrasse fish passed the mirror test, which is considered the gold standard for determining self-awareness.
Researchers Stunned by Gorgeous New Fish Find
Scientific divers from the California Academy of Sciences discover new species of dazzling, neon-colored fish.
Cheap Magnets Could Keep Sharks Out of Fishing Nets
Commercial fisheries accidentally kill around 100 million — yes, 100 million — sharks each year. The solution to this problem might lie in magnets.
Sharks Dig Jazz? Not So Fast
A new study seems to suggest that sharks prefer jazz to classical music but the researchers set us straight.
Cuttlefish, Masters of Camouflage, Have Newly Discovered Super Power
Cuttlefish can avoid detection by holding a disguise for long periods of time.
Who Knew Fish Sex Could Be So Loud?
The Gulf corvina is the loudest fish on the planet, helping lead to its overfishing and endangerment.
Scientists Discover Why Half of All Farmed Salmon Are Partially Deaf
Scientists have long known that much of the world's farmed salmon was deaf. Now they know why.
Why Goldfish Make Their Own Alcohol
Scientists have known for a long time that goldfish make their own alcohol. Now, they've just discovered how they do it.
How Could a Human Race a Shark?
Michael Phelps is racing a shark for TV glory. But does he have a fighting (or swimming) chance?
In the Absence of Mates, Zebra Shark Just Births Her Own Clones
Shark shocker! This 'virgin birth' is the first example of a shark switching from sexual to asexual reproduction.
Eerie, Deep-ocean Ghost Shark Footage Surfaces for First Time
Never mind the penis on its head, this weird ghost shark was filmed live for the first time, and hanging out in the wrong hemisphere.
Does a New Two-headed Shark Discovery Mean It's Time to Seriously Freak Out?
In the past decade, several two-headed shark fetuses have been discovered. Is there something going on in the oceans we should know about?
Catfish Are Chowing Down on Mice and Pigeons
Scientists have discovered a few enterprising catfish that are having a fancy feast — of mice.
Cannibalistic Ancient Shark Ancestors Devoured Their Own Young
The eel-like Orthacanthus, a precursor to modern sharks, may have turned to cannibalizing its own babies in times of crisis.
We Know Far Less About Sharks Than You Might Think
Think science has sharks all figured out? Think again. We still have so many unanswered questions about the aquatic marvels.
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