The mother, named Antonia, is a clone of another black-footed ferret, named Willa, whose genetic material and tissue samples were collected in 1988 and stored ever since at the San Diego Zoo's ...

But today's black-footed ferrets are all descended from just seven individuals, known as founders. Their lack of genetic diversity makes breeding them a challenge. Antonia is the clone of a black ...

In April, the United States Fish and Wildlife Service announced the cloning of two black-footed ferrets from preserved tissue samples, the second and third ferret clones in history, following the ...