noun. 1. an animal's defending of a particular geographic region from intrusion by other members of the identical species.

TERRITORIALITY: "The exhibiting of territoriality among animal species is common behavior dating back as far as their existence began."
Cite this page: N., Pam M.S., "TERRITORIALITY," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/territoriality/ (accessed April 16, 2021).