Scientists in Texas are on high alert for an invasive species that could threaten native wildlife: an Australian crayfish ...

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 ...

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 ...