Remarkable footage shows hundreds of shellear fish scrambling up Luvilombo Falls in the Democratic Republic of the Congo.

A month ago, I took a walk through the edge of San Francisco’s Golden Gate Park. I was off the main road, on a dirt and gravel trail. So it was strange to look ahead and see that fish were blocking my ...

The Savannah River stretches 301 miles along the border of South Carolina and Georgia. It begins at Lake Hartwell in the north and ends as an estuary that empties into the Atlantic Ocean south of ...

The Hudson River flows from its headwaters in the Adirondack Mountains in up-state New York down to New York Harbor and into the Atlantic Ocean. It’s named after Henry Hudson, who explored in 1609 for ...

World Aquatic Animal Day highlights a hidden crisis, as billions of aquatic animals face growing threats from human activity.

Can we finally retire the myth that goldfish have three-second memories? This oft-cited “fact” has been thoroughly debunked. Scientists have shown that fish can distinguish and remember individuals, ...