Ferrets are territorial animals by nature. They may exhibit territorial behavior by marking their territory with scent glands located near their anus. This marking behavior is a way for ferrets to establish boundaries and communicate with other ferrets. In a household setting, pet ferrets may mark their territory by rubbing their scent on objects or corners of rooms. To manage territorial behavior in pet ferrets, it's important to provide them with enough space, enrichment, and social interaction to help them feel secure and content.