Across the American West, officials are racing to contain a wave of invasive and toxic organisms that are literally living in the pipes, canals, and rivers that deliver drinking water. From mussels ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: iStock Water agencies in California's San Joaquin Valley are desperately trying to figure out the best way to combat ...

You might think of Australia's arid center as a dry desert landscape devoid of aquatic life. But it's actually dotted with thousands of rock holes—natural rainwater reservoirs that act as little oases ...

A 4-year-old girl in India noticed a “translucent” creature in a water tank and helped scientists discover a new species, a study said. Photo from Sreenath, Pradeep, Aju, Sukumaran, Sebastian, Anto ...

And as with just about anything, too much of anything can cause problems. Out-of-control algal blooms, called "harmful algal ...

In the cold, dark water far below the sunlit surface around the Galapagos Islands, researchers have identified a small ...

Black widows and brown recluses are often the talk of South Carolina residents, with parents scouting for eight legged foes in dark corners of basements and yards before letting the kids out to play.