A clever tropical fish has flipped how biologists are thinking about memory, brains and visual recognition in the animal ...

Experience a peaceful underwater moment as a huchen (Hucho hucho) glides through a clear river. Watch how it slowly moves ...

There are around 40 species of dolphins alive today. They are found all over the world and live in both freshwater and marine ...

A massive Amazonian fish yields the unique and once overlooked leather prized by luxury brands and Texas cowboys.

This one-ton turtle once ruled South America’s rivers — until a changing planet proved too much for even the largest ...

Many different countries have long rivers, and the U.S. is no exception, but that river is more complicated and unique than ...

The Amazon rainforest is a biological jackpot, a climate regulator, and a living history book all at once. Scientists are ...

It's not a gradual warming trend and it's not the moon phase that triggers Florida’s biggest bass spawning waves. JT Kenney explains how to time the best fishing ...

Some nights, when I should be doing something sensible or useful, I end up looking at pictures of blue whales and feeling very, very tiny. We talk a lot about the megafauna that are gone – mammoths, ...

Ancestral fishing knowledge is now obsolete after dams broke the river’s rhythm, scrambling ancient fishing spots.

For years, a huge Amazon contract has been one of the few bright spots in the US Postal Service’s finances. But now the USPS plans to offer those last-mile services to additional customers to stem ...