Fish are one of the species in the world with the most diversity. These aquatic animals come in different shapes, colors, and skeletal compositions. Some are endemic to freshwater habitats, and others ...

BANGKOK (AP) — The world’s largest recorded freshwater fish, a giant stingray, has been caught in the Mekong River in Cambodia, according to scientists from the Southeast Asian nation and the United ...

Swimmers at an Ashdod beach witnessed an astonishing sight when a huge fin surfaced nearby, forcing authorities to clear the water and document a marine visitor that has never been officially recorded ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Two of the world's biggest freshwater fish ...

SYDNEY -- One of the most impressive experiences you can have with wildlife kicks off with a shouted command. "Come on, come on, come on -- into the water," guide Georgia Clements yelled to her guests ...

When it comes to fishing, reeling in the biggest one is often the goal. But as it turns out, leaving the largest and oldest fish in the water can help entire fish populations cope better with ocean ...