For decades, the Signal Crayfish has been an ecological troublemaker. It is invasive and widespread across Europe, Asia and ...

Two new crayfish species have been discovered and named, but face immediate threats from invasive species and human impact.

Nearly half of all freshwater American crayfish are at risk of extinction. As a keystone species in South Carolina, what ...

The culprit? The rusty crayfish—a voracious, fast-spreading species that’s now officially been confirmed east of the Continental Divide for just the second time. According to Colorado Parks ...

According to a press release from Colorado Parks and Wildlife, the rusty crayfish was located in the West Fork Little Thompson River in northern Colorado. Described as "an aquatic nuisance species ...

while misfortunate crayfish could disappear due to invasive rusty crayfish. That's a much bigger risk for the misfortunate crayfish in Oregon that has the rusty crayfish from eastern North America ...

The Okanagan Crayfish, named after the Okanagan geographic region, and the Misfortunate Crayfish are both under threat from invasive species such as the Rusty Crayfish and the Virile Crayfish. These ...

while misfortunate crayfish could disappear due to invasive rusty crayfish. British Columbians urged to take action against invasive species That's a much bigger risk for the misfortunate ...