The river system provides water to 40 million people. The Colorado River, one of the most important river systems in the country, is drying up at an alarming rate. The issues surrounding depleting ...

"There was this gigantic river system": Researchers find ancient lost world deep beneath Antarctic ice. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

The U.S. Army Corps of Engineers and U.S. Bureau of Reclamation are withdrawing from their plan to prepare a supplemental environmental impact statement for the Columbia River system. The withdrawal ...

Rivers have served as lifelines for civilizations throughout history, shaping landscapes and cultures across continents. These mighty waterways continue to fascinate researchers and explorers today, ...

A record number of sockeye have returned to Skagit Bay and the Skagit river on their annual spawning migration, according to the Washington Department of Fish and Wildlife. From June through October, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Thousands of years ...

North American river otters once lived in every major river system in Pennsylvania. But because of development, otters largely disappeared from the state by the early 1900s. File - A North American ...