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 ...

Two Missouri crayfish species may be listed as 'threatened' under Endangered Species Act Sep 21, 2020 Brightly colored creature—kept in pet aquariums globally—discovered as new species ...

Sightings of the species in the Rio Grande Valley have sparked fear among some Texas environmental officials, who say the crayfish could threaten local wildlife and wetland ecosystems.

Scientists have described a new species of colorful crayfish—and it might already be sitting in your aquarium. The researchers detailed their discovery in the journal Zootaxa last week.