The tiny fish, called shellears, use microscopic hook-like growths on their fins to ascend—and they take a lot of breaks. The ...

The Mekong giant catfish is an endangered freshwater species. Zeb Hogan. Many people are familiar with the epic migrations of ...

More than 3,000 fish species have been caught in bottom trawls, with estimates suggesting the true number could be nearly ...

Betta fish are native to Southeast Asia and are prized aquarium species for their long fins and varied colors.

Do you know what a male fish is called? Discover the official names, species-specific nicknames, and unique traits used to ...

Inside the colorful Wild Reef exhibit on the lower level of Chicago's Shedd Aquarium sits a small tank containing two warty ...

As national representatives gather at the UN COP15 Convention on Migratory Species (CMS) meeting this week in Brazil, a new global report has been released profiling a dangerously neglected category ...

If you liked this story, share it with other people. The new fish species come from five continents and a diversity of habitats, including limestone caves, peat swamps, wetlands and rivers. Most are ...

When an Amazon molly says she doesn't need a man, believe her. Every single one of these small fish, found in freshwater streams in Mexico and Southern Texas, is female, and reproduces exclusively ...

Wild betta fish don't live in clean tanks with filtered water — they survive in shallow, oxygen-depleted puddles most people wouldn't look twice at. This guy went back to a canal he'd found months ...

A Dutch lock is closed for the spring, and its employees want you to tell them when migrating fish come knocking by ringing a digital doorbell In a canal in the Dutch city of Utrecht, fish are ...

Add Yahoo as a preferred source to see more of our stories on Google. A research team traveled to South Africa’s Umzimkhulu River in 2017 with a specific mission: find surviving pockets of the Maluti ...