As life on earth evolved, billions of creatures made the move from primordial ooze to life on land. For most, that eons-long transformation was a one-way trip. With the exception of amphibians—which ...

A visualization of Tiktaalik roseae, an extinct aquatic animal with fossils that shed light on the evolution of land animals from marine animals millions of years ago. Nobu Tamura via Wikimedia ...

The old idiom of being a fish out of water is never a positive thing. Instead, it paints a picture of being uncomfortable or awkward. This is how most fish feel when they are removed from their ...

The transition from water to land is one of the most significant events in the history of life on Earth. Now, a team of roboticists, palaeontologists and biologists is using robots to study how the ...

Northern snakeheads are an invasive fish species in Mississippi that threaten the ecosystem. The public is encouraged to kill or freeze northern snakeheads to help control their population. Some ...

It may sound like something out of science fiction: A three-foot-long fish that can breathe air, “walk” on land and survive for days out of the water. But the northern snakehead is very real—and, ...