Freshwater Fish

Freshwater fish live in lakes, rivers, ponds and streams. Common freshwater fish include carp, bass, trout and catfish.


Learn More

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.

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.

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.

Fish Can Recognize Individual Human Faces, Scientists Discover

Maybe the shark in 'Jaws' really did have a personal vendetta after all. Scientists have found at least one species of fish that can distinguish between human faces.

Prozac in Water Makes Fighting Fish Docile. What Does That Mean for Us?

A new study looks into the impact trace amounts of antidepressants in water has on the behavior of Siamese fighting fish.

Can electric eels kill you?

Electric eels actually aren't eels at all, but they certainly are electric. Their shock can kill animals in surrounding waters, but could it take down a human?

Kite Fishing

Kite fishing is a new, creative and complicated way to fish. Once you get the hang of it, you can haul in a large amount of fish at one time.

How to Shop for Sustainable Seafood

It's possible to keep seafood--a valuable source of protein and Omega-3 fatty acids-- in your diet without doing too much harm to the oceans, if you're careful about what varieties of fish you buy and who you buy it from.

Freshwater Sawfish River Monsters

Contrary to popular belief, freshwater sawfish are not sharks. These fish are from the ray species and can grow up to 20 feet (6 meters) in length.