Biologists are monitoring an Australian crayfish that surprisingly showed up in Texas, fearing it could threaten local wildlife and ecosystems. How did it get there?

The invasive Australian Redclaw “Crayfish” — identifiable by its large size and the red patch on its claws — is currently only found in the Brownsville area.

Researchers have in some ways only just begun to study the Australian redclaw crawfish's effects on South Texas, but do suspect their range may be limited.

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 “growing concern” in the wetlands of the Rio Grande Valley as researchers sift through dozens of traps and nets in search of a potential “threat,

This species of crayfish has been called invasive by the Texas Parks and Wildlife Department after it showed up along Texas beaches. What is it?