The original cells were frozen in 1988 and since then the population of black-footed ferrets has dwindled to just a few individuals all living in captivity. The

The original cells were frozen in 1988 and since then the population of black-footed ferrets has dwindled to just a few individuals all living in captivity. The article mentions that all black-footed ferrets alive today are essentially half-siblings, except for this clone.