Add Yahoo as a preferred source to see more of our stories on Google. The super invasive rusty crayfish, sometimes called a gladiator, has been slowly taking over several waterways in Pennsylvania.

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 ...

Getting your Trinity Audio player ready... Rusty crayfish, an aquatic nuisance and an invasive species, has been discovered in a Larimer County river south of Estes Park, according to Colorado Parks ...

What’s rusty and invasive to our waters? The rusty crayfish! Join the Forest Preserve District of Kane County for the seventh annual Rusty Rodeo on Saturday, Aug. 9, from 10 a.m. to noon. It’s time to ...

Attention nature enthusiasts and families! The Forest Preserve District of Kane County has a mission for you. The local streams and rivers have underwater invaders by an invasive species known as the ...

LARIMER COUNTY, Colo — 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 ...

STEAMBOAT SPRINGS – An aggressive crayfish native to the Ohio River basin has been found in the headwaters of the Yampa River in Colorado for the first time, prompting state wildlife officials to bar ...

The Forest Preserve District of Kane County will hold its seventh annual Rusty Rodeo from 10 a.m to noon on Saturday, Aug. 9, to help reduce the number of rusty crayfish, which are an 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 ...