Colorado River tests positive for zebra mussels, sparking environmental and water system worries. CPW ramps up efforts to contain the invasive species.

Plus: Teacher apprenticeships tackling shortage, deconstructing “forever chemicals” at Peterson and much more Colorado news ...

In the animal kingdom, it’s often said that there’s a time for the hunter and a time for the hunted. But sometimes, even the most formidable predators end up picking the wrong opponent. Explore 12 ...

Scientists are trying new strategies to manage invasive mussels in Lake Michigan after decades of ecological disruption ...

"This is what he does for fun, is that he finds stuff." Officials deploy remarkable dog to fight back against emerging threat ...

Stress isn't what it used to be. In a world dominated by chronic stress, we can no longer rely on our biological systems, ...