A new report finds 325 migratory fish species in urgent need of help, including some of the world’s most iconic freshwater giants.

From the Andes to the Atlantic and back again, the dorado catfish reveals the connectivity of one of the world’s largest ...

Eagles are among the most awe-inspiring birds in the animal kingdom, known for their sharp vision, massive wingspans, sharp ...

The longest animal on Earth isn’t what you think. It’s a drifting, gelatinous predator whose reach reshapes how we define ...

Snakes have both fascinated and scared humans for as long as we can remember. Especially frightening are the giants that ...

The fish, weighing up to 100 pounds and eating 10% of their weight in algae every day, could pose an existential threat to ...

Glittery sea worms and sea squirts fit for "The Lord of the Rings" universe might sound like pure fantasy, but they're very ...

Far below the ocean’s surface lies a dark, freezing world that few humans have ever seen. In these extreme depths, some of ...

If you’re anything like us, you’re already counting down the days until the Easter long weekend from Friday, April 3 to ...

From massive tanks holding millions of gallons of water to facilities perched in the most unexpected locations, the world's ...