Here's why:
* Family: Groundhogs and chipmunks are both members of the Sciuridae family, which includes squirrels, marmots, and other rodents.
* Ferrets: Ferrets belong to the Mustelidae family, which includes weasels, otters, and badgers. They are not rodents.
Therefore, even though groundhogs and ferrets might share some similar physical characteristics (like being burrowing animals), they are not closely related from a biological standpoint.