The black-footed ferret is an mammal. They are in the ferret family. That lives in the Northern Americas. By 1986, only 18 remained. Today, the ferrets are making a comeback, with approximately 500 black-footed ferrets in the wild and another 300 living in captive breeding facilities as of 2013.
How and were did they spread??
They came in the Northern Americas by travailing or exploring. People cached them and bring them all over to sell them as pet or used them for there fur. But know there all over in Mexico, Canada and U.S.