Researchers have unearthed fossils of massive freshwater crayfish that once scuttled through the lakes of southern New ...

The giant crayfish were similar in size and appearance to Australian yabbies or American crawdaddies. A team of paleontologists and volunteers have been excavating the large St Bathans site since 2001 ...

Rusty crayfish, an aquatic nuisance and an invasive ... additional surveys of the Little Thompson River to determine the size and extent of the invasive population. Get more Colorado news by ...

An aquatic nuisance species has been found for the first time in the Little Thompson River, according to Colorado Parks and ...

DENVER ( KDVR) — An aggressive aquatic nuisance species was found in a northeastern Colorado river. According to Colorado ...

CPW has confirmed the presence of invasive rusty crayfish in the West Fork Little Thompson River, impacting Colorado's ...

CPW said it will conduct additional surveys of the Little Thompson River to determine the size and extent of the population in the coming months. CPW has confirmed rusty crayfish in five other ...

Rusty crayfish, an aquatic nuisance and an invasive species, has been discovered in a Larimer County river south of Estes ...