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 Australian red claw crayfish, a crustacean that typically belongs 8,000 miles away, after the species was seen pervading ...

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