Murray crayfish once thrived in the southern Murray-Darling Basin. The species was found everywhere from the headwaters of the Murray and Murrumbidgee Rivers in the Australian Alps all the way down to ...

An invasive crayfish species from Australia is posing a threat to the native crayfish species in the Rio Grande Valley, Texas officials warn. Screengrab from Texas Parks and Wildlife video There’s a ...

An invasive species of crayfish is spreading through Texas waters, sparking grave wildlife concerns for conservationists. Researchers in Brownsville, Texas, have been investigating reports of an ...

BROWNSVILLE, Texas — Scientists in Texas are on high alert for an invasive species that could threaten native wildlife: an Australian crayfish that has appeared in the state’s resacas, the remnant ...

Murray River Crayfish are fully protected at all times and must be returned to the water immediately if caught. Credit: Government of South Australia Murray crayfish once thrived in the southern ...