Today, after numerous reintroductions, there are thought to be roughly 350 black-footed ferrets living in the wild, and these animals are suffering from low genetic diversity, disease, habitat loss, ...

TINA JACKSON: This is a huge first. These kits that were born this year are born to one of only three cloned ferrets in the world. SHAPIRO: That's Tina Jackson. She's the black-footed ferret recovery ...

TINA JACKSON: This is a huge first. These kits that were born this year are born to one of only three cloned ferrets in the world. SHAPIRO: That's Tina Jackson. She's the black-footed ferret ...

(Photo by the Smithsonian’s National Zoo and Conservation Biology Institute) Antonia, cloned from frozen material from long-dead Willa, is helping raise her now 3-month-old kits as part of an effort ...