FOR demonstrating the structure and action of the elaborate gizzard of the crayfish, which I have found to be usually regarded as a hopeless puzzle, I have constructed, in Prof. Lankester's ...

A spill of diesel into a river could affect endangered native crayfish, a wildlife trust has warned. Residents of Kendal, Cumbria, first spotted the oily substance floating atop the River Kent ...

Per the Texas Parks and Wildlife Department (TPWD), the 3-6-inch-tall edifices composed of small pellets of mud assembled ... are likely the work of burrowing crayfish. The mudbugs are not the ...