Here's why:
* Weasel Family: Ferrets are indeed members of the Mustelidae family, which includes weasels, badgers, otters, and wolverines.
* Sett: Ferrets are known to live in burrows called setts, which they often dig themselves or take over from other animals.
Other members of the weasel family might also live in setts, such as badgers. However, ferrets are the most commonly known animal in this family to do so.