What term describes rodents that have evolved or learned to live with people in and on buildings and other structures?

• A. Commensal Rodent
• B. Domestic Rodent
• C. Invasive Rodent
• D. Field Rodent

Answer: (A)

The main idea is animals that live in close, ongoing association with humans, using buildings as habitat and food sources. The best term here is commensal rodent. Commensal means sharing space with humans and taking advantage of human resources like crumbs, garbage, and shelter, which is exactly how these rodents thrive in and around houses and other structures. Classic examples are the house mouse and the Norway rat, which have learned or evolved to exploit human environments.

This differs from domestic rodents, which are bred or kept as pets or for human use and aren’t the wild pests that continuously inhabit buildings. It also differs from field rodents, which live in natural habitats away from human structures, and from invasive rodents, which describes non-native species spreading into new regions, not the particular lifestyle of living in buildings with humans.