Which of the following is NOT one of the three primary species of commensal urban rodents in South Carolina?

The Woodchuck is indeed not one of the three primary species of commensal urban rodents in South Carolina. Commensal rodents are those that live in close association with humans and benefit from this relationship, typically by occupying urban environments and relying on human-generated food sources.

The House Mouse, Norway Rat, and Roof Rat are commonly found in urban settings across South Carolina, where they thrive due to the resources and shelter provided by human activity. The House Mouse is small, adaptable, and reproduces quickly, making it a frequent invader of homes and buildings. The Norway Rat is larger, often found in basements or sewers, and is known for its burrowing habits. The Roof Rat is adept at climbing and typically nests in trees or attics.

In contrast, the Woodchuck, also known as a groundhog, is primarily a wild rodent that does not typically live in urban environments nor rely on human resources for survival. It is more commonly associated with rural areas, where it burrows in fields and gardens. Therefore, it does not fit the definition of a commensal rodent in urban contexts.