In this photo provided by the U.S. Fish and Wildlife Service is Elizabeth Ann, the first cloned black-footed ferret and first-ever cloned U.S. endangered species, at 50-days old on Jan. 29, 2021. Scientists hope the slinky predator named Elizabeth Ann and her descendants will improve the genetic diversity of a species once thought extinct but bred in captivity and reintroduced successfully to the wild. U.S. Fish and Wildlife Service via AP