Biologists are monitoring an Australian crayfish that surprisingly showed up in Texas, fearing it could threaten local ...

When a team of scientists studying the brightly colored and common New Guinea crayfish ordered some new animals for their lab, they were in for a bit of a surprise. They uncovered a species of the ...

Tasmania's giant freshwater crayfish is the largest animal of its kind on the planet. Like many native species, it's threatened by encroaching humans.

→'Giant' forest creature — kept in terrarium ... Check out our stories here. The male crayfish were a bit larger than the females, around 4.8 inches compared to 3.8 inches long, according ...