A University of Minnesota study finds out just how clean electric cars can be.
Meet the man who's trying to get the John Muir Memorial Shelter on the National Register of Historic Places.
Conservationists are turning to high-tech surveillance gear.
Large aggressive non-native species are invading coastal waters off the Southeast U.S. The best way to fight them is with knife and fork.
To many, Amphioctopus marginatus looks like a mouthful of sashimi. To protect itself, it acts like an octopus. As one does.
Ranchers ride to Washington, D.C., for the right to graze on water-starved rangeland.