Just a just a few miles downstream from Lake Mead along the Colorado River, you'll find pristine Lake Mohave. Or rather ... desert canyons along the Nevada-Arizona border. Formed in 1951 by ...

Riley Rackliffe follows the stinky green blobs as they travel across Lake Mohave. The aquatic biologist leads a two-man team for the National Park Service, dipping a long stick into the reservoir ...