Crayfish, crawfish and crawdad are all the same animal, but they’re called different names in different regions. The Australian redclaw crayfish are much larger than the species native to the U.S.

A zoo may have to quarantine white-clawed crayfish to prevent them dying from a mystery illness. About 70 of the endangered crustaceans were found dead around the River Wansbeck in Northumberland ...

A new critter is creeping into the United States' waters. The invasive Australian redclaw crayfish has been spotted in southern Texas, roughly 8,000 miles from its home. The freshwater crustacean ...

Several invasive Australian Redclaw Crayfish were recently collected by researchers from the University of Texas Rio Grand Valley in Texas, according to the Texas Parks and Wildlife Department.

A single female marble crayfish can produce hundreds of offspring, meaning just one can create entirely new populations that outcompete native species. Skip Navigation. Share on Facebook; ...

A blue-form adult female dusty crayfish (Figure a). A purple-form adult male (Figure b). CREDIT: Jiří Patoka. Dusty crayfish generally have smooth bodies, large eyes, and claws.

It was observed that the female red-swamp crayfish could carry as many as 100 to 375 eggs per individual, whereas the Japanese native crayfish could carry only about 18 to 75 eggs.

Experts say a female crayfish and several of its young were spotted at this same location and identified on iNaturalist in 2013, “indicating this species has been present at this location for ...

Invasive Australian Redclaw Crayfish were just collected from a Texas apartment complex pond, the first time they were found in the state and second time in US.

Each female can lay up to 5,000 eggs a year, so they could be breeding rapidly. But local authorities say they haven't seen evidence of that. The invasive Australian redclaw crayfish has intruded ...

Experts say a female crayfish and several of its young were spotted at this same location and identified on iNaturalist in 2013, “indicating this species has been present at this location for ...