MEDFORD, Ore. — Underwater barriers in Crater Lake are being floated as one idea to slow the invasion of millions of non-native crayfish that are threatening a salamander known as the Mazama newt. “It ...

Anglers looking to cash in on the wealth of crawfish on the California side of Lake Tahoe are one step closer to being able to legally drop their traps. Gov. Jerry Brown signed Assembly Bill 165 last ...

A new species of crayfish found in Washington and Canada has been identified, researchers said. Getty Images/iStockphoto A graduate student came across a reddish-brown creature with claws that was ...

Rusty crayfish have taken over the Lower Susquehanna River. Non-native, invasive crayfish are spreading through streams, rivers, lakes and ponds across Pennsylvania, replacing native species and ...

MEDFORD, Ore. (AP) - Underwater barriers in Crater Lake are being floated as one idea to slow the invasion of millions of non-native crayfish that are threatening a salamander known as the Mazama newt ...