Is a fox a dog?

Foxes are not dogs. However, foxes do belong to the taxonomic Canidae family, which also includes domestic dogs, wolves and coyotes. Foxes are part of the Canidae group known as vulpines as opposed to the Canidae group known as canines.

As with canines and even felines, foxes have four-toed hind feet and five-toed front feet. They resemble felines in that they have vertically oriented pupils, which allow them to see well in nearly any light condition. Foxes' tails, which are bushy, resemble those of many canines. As with dogs, foxes are capable of barking, whining, growling and various other vocalizations.