During each release, some of the crayfish were tagged with trackers. This has provided world-first movement and activity information. It shows all tagged crayfish being regularly detected ...

Giant freshwater crayfish, longer and bulkier than today's species, roamed New Zealand 20 million years ago. They would have ...

the U.S. Fish and Wildlife Service today designated 446 stream miles of critical habitat for the Big Sandy and Guyandotte River crayfish in West Virginia, Kentucky and Virginia. “These unique crawdads ...

Forty-six crayfish collected in the Ocoee River Gorge in southern Tennessee are part of a new species, researchers said in a study. Photo from senior author Roger F. Thoma A researcher was wading ...

The UK is home to a quarter of the world's population ... 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 ...

Giant freshwater crayfish, longer and bulkier than today’s species, roamed New Zealand 20 million years ago. They would have ...