Y U NO WONK DIS
EDIT FROM WIKIPEDIA:
"It was declared extinct in 1979 until Lucille Hogg's dog brought a dead black-footed ferret to her door in Meeteetse, Wyoming in 1981. That remnant population of a few dozen ferrets lasted there until the animals were considered extinct in the wild in 1987. However, a captive breeding program launched by the United States Fish and Wildlife Service resulted in its reintroduction into eight western states and Mexico from 1991–2008. There are now over 1,000 mature, wild-born individuals in the wild in 18 states of the USA, with four self-sustaining populations in South Dakota (two), Arizona and Wyoming."