* Prairie dogs are rodents, not canines like wolves.
* Wolves are much larger than prairie dogs and are carnivores.
It seems like you might be thinking of a Black-footed ferret. They are small, slender mammals with a long, slender body and short legs. They are found in the same areas as prairie dogs, and they prey on them.
If you're curious about specific animals in a certain area, it would be helpful to provide more context. For example, what part of the world are you interested in? What are the characteristics of the animal you're looking for?