A small fossil reveals that the largest freshwater fish, Otophysans, emerged in the sea, not in rivers, changing the ...

Embarking on freshwater aquarium keeping can be daunting, but several fish species are ideal for beginners. Goldfish, Bettas, ...

At first glance, a pet fish is a piece of cake. Yes, they are very chill pets compared to dogs and cats, but setting up their environment is where a lot of people flounder (lol!). For this reason, we ...

By Stefan Lovgren Southeast Asia’s Mekong River is one of the world’s most diverse and productive freshwater ecosystems, home ...

A fisherman in northern Cambodia hooked what researchers say is the world’s largest freshwater fish — a giant stingray that scientists know relatively little about. The fisherman, 42, caught the ...

It looks like a really, really big pancake. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A fisherman in Cambodia snagged the rights to a true ...

A lethal hunter lurks in the shadows of the river, quiet and unseen. While its name is a staple of terrifying folklore, the ...

Killed by algae blooms and dwindling from dams and droughts, the largest freshwater fish in North America is at risk in California. Last week, wildlife officials took the first major step toward ...

Whether a caught fish is released back into the water or removed for consumption depends on more than just the fish species ...

Cleaning a fish tank is a delicate process. Discover how to change water without throwing a tank's ecosystem into disarray.