Sharks are becoming a popular feature in home aquariums, but there’s a clear distinction between freshwater and saltwater ...

The Dutch city of Utrecht has installed a “fish doorbell” that lets online viewers alert officials when fish are stuck at a ...

The giant freshwater stingray may be the world ... where their more commonly known relatives live. These ancient fish, little changed over many millions of years, can reach 16.5 feet long ...

The central Dutch city of Utrecht has installed a “fish doorbell” that allows denizens of the internet to give a helping hand ...

The world has seven continents, but do you know the largest freshwater fish in each? These creatures show the incredible diversity of Earth's inland waters. Let's get amazed as we look at these ...

Setting up a home aquarium can be a rewarding experience, but one of the first and most crucial decisions you'll need to make ...

WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries.

A community of rare fish enthusiasts collects endangered species of freshwater fish from lakes and springs around the world, ...

Other mussels can jump up and clamp onto a fish’s face to expel their larvae onto its gills. • Worldwide there are 890 known freshwater mussel species, and 302 of those live in North America.

Australian scientists have discovered an ancient freshwater fish fossil with its stomach contents remarkably preserved. In a ...

All steelhead start life as rainbow trout, but not all rainbow trout will become steelhead. Confused? You’re not alone.