The idea of returning Murray crayfish to the river in South Australia is not new. Two University of Adelaide ecologists, the late Keith Walker and Mike Geddes, first suggested it in the 1990s.

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

WELLINGTON: Giant freshwater crayfish, up to 25cm long, once roamed New Zealand's ancient lakes around 20 million years ago, ...

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 ...

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