Scientists have identified the two biggest reasons that once-pristine rivers across the Arctic are growing cloudy with toxic ...

With a warming climate, groundwater is reaching layers of rock and soil that had been frozen for thousands of years ...

Rusty crayfish have been found in the Upper Colorado River Basin for the first time. That's according to Colorado Parks and Wildlife, which says the discovery in Grand County of the invasive species ...

This invader is eating through Colorado’s rivers, and it could wipe out native fish and plants if left unchecked. Colorado wildlife officials are raising the alarm after an aggressive invasive species ...

ARPIN – Calling someone a "rusty wrangler" might not sound like a compliment, but for children at North Wood County Park, it's a sought-after designation this summer. Rusty crayfish are an invasive ...

These crayfish are larger, more aggressive, and reproduce more quickly than native species, leading them to dominate ecosystems and disrupt food webs. Rusty crayfish have a significant impact on ...

A non-native crustacean has been discovered in the Little Thompson River for the first time. Colorado Parks and Wildlife (CPW) confirmed the presence of rusty crayfish in the West Fork Little Thompson ...

Colorado wildlife officials are raising the alarm after an aggressive invasive species was discovered in the West Fork Little Thompson River, the Cool Down reported. The culprit? The rusty crayfish—a ...

Add Yahoo as a preferred source to see more of our stories on Google. Colorado wildlife officials are raising the alarm after an aggressive invasive species was discovered in the West Fork Little ...