Territoriality (noun)

The instinct or behavior of defending a territory or area as one's own.

Origin:

From the latin "territorium" meaning "territory" and the english suffix "-ality" meaning "state of being".

Examples:

1. The territoriality of animals is often seen in the way they defend their nests or territories.
2. The territoriality of some species of birds is remarkable as they will defend even small areas.
3. The territoriality of a dog is often seen in the way it barks at other dogs or strangers who come too close.
4. Territoriality can sometimes lead to conflict between animals of the same species.
5. Territoriality is a common characteristic of many species of primates, including humans.