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 ...

Over the last 20-30 years, river pollution and habitat loss have taken their toll on our only native crayfish. The tributaries of the Usk and the Wye are real enclaves for these lobster-like ...

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 ...

New Yorkers looking to find an elusive blue crayfish will have to travel, albeit not far. Cambarus monongalensis are native ...

The natural world is full of meticulous, mathematical patterns, but now and again, Mother Nature likes to throw in a special surprise. As you’ll see in this video, one man’s crayfish hunt took ...

Adapting the banks of rivers, canals and ditches may prove a good tool to combat the American crayfish, a trial in Leiden has shown. By making the banks flatter, the crayfish find it more difficult to ...

David Harpley, director of nature recovery at Cumbria Wildlife Trust ... "The River Kent is famous for white clawed crayfish which are likely to be affected by poor water chemistry." ...