Freshwater and sea turtles may look similar, but neither one could survive in the other's territory for these reasons.

Keystone species are those that exist in an ecosystem to keep it functioning at its healthiest levels possible. These animals ...

It’s one of the largest rivers in the Southwest. Discover the freshwater fish and animals that call the Pecos River home.

The Hudson River flows from its headwaters in the Adirondack Mountains in up-state New York down to New York Harbor and into ...

WASHINGTON (AP) — Nearly a quarter of animals living in rivers, lakes and other freshwater sources are threatened with extinction, according to new research published Wednesday. “Huge rivers like the ...

Nearly a quarter of animals living in rivers, lakes, and other freshwater habitats face extinction, according to a new study published Wednesday in Nature. Researchers found that 24 percent of ...

Almost a quarter of freshwater animals, including crabs, crayfish, shrimp, damselfly and fish, are threatened of going extinct, according to a new, global study that was published on Wednesday. The ...

Every life must have an end, yet some species stretch that limit farther than we ever thought possible. Scientists have found ...

Do animals see illusions like we do? A study tests guppies and doves to find out how different species process visual tricks.

Freshwater habitats — including rivers, lakes, ponds, streams, bogs and wetlands — cover less than 1% of the planet's surface but support 10% of its animal species, said Catherine Sayer, a zoologist ...