Researchers have unearthed fossils of massive freshwater crayfish that once scuttled through the lakes of southern New ...

Lobster, shrimp, crab, and crayfish, all belonging to the crustacean group, share common characteristics, from super shell armor to extreme claw strength. Our five-day unit plan for kids delves deeper ...

A chef cooks crayfish at a restaurant in Xuyi, Jiangsu province, on March 8. WANG JIANMIN/XINHUA In the picturesque countryside of Xuyi county, Jiangsu province, the arrival of spring not only ...

Rusty crayfish, an invasive species, has been discovered in the Little Thompson River in Larimer County, Colorado. This aggressive crayfish, known for its big appetite and rapid reproduction ...

WELLINGTON, April 18 (Xinhua) -- Giant freshwater crayfish, up to 25cm long, once roamed New Zealand's ancient lakes around 20 million years ago, three times the size of today's native species ...

A stream which is home to one of West Yorkshire's last remaining populations of endangered white-clawed crayfish has been awarded protected status. Luddenden Brook, at Jerusalem Farm nature ...