http://www.newsweek.com/animal-cloning-explained-endangered-species-duplicate-elizabeth-ann-black-footed-ferret-1570488

An endangered species of ferret native to North America's Great Plains is being brought back from the brink of extinction by cloning, experts say.

Researchers aiming to boost the population of the black-footed ferret made progress on December 10 last year with the birth of Elizabeth Ann—created from the frozen cells of another member of her species, called Willa, that lived about three decades ago.