ST. LOUIS, Mo.— Two species of Missouri crayfish are listed as threatened under the Endangered Species Act. The U.S. Fish and Wildlife Service says that the Big Creek and St. Francis River ...

A pair of Missouri crayfish species were recently granted Endangered Species Act protection, according to the U.S. Fish and Wildlife Service. The Big Creek crayfish and the St. Francis River ...

Researchers at the University led by Eric Larson, professor in ACES, made a groundbreaking discovery pertaining to the Signal ...