Two endangered black-footed ferrets cloned from frozen tissue samples

Noreen, a cloned black-footed ferret, at the National Black-Footed Ferret Conservation Center in Carr, Colorado, on 19 February 2024. Photograph: Kika Tuff/Revive & Restore via AP

Two more black-footed ferrets have been successfully cloned in an attempt to save the endangered species, the US Fish and Wildlife Service (USFWS) announced.

The national agency shared news about the births of ferrets Noreen and Antonia, who were both born last May.