United Pet Club

Resource guarding (possessive aggression)

Resource guarding, or possessive aggression, is defensive behaviour shown to protect food, toys, resting places, or people from a perceived rival. It is a normal survival behaviour that becomes a problem when directed at household members. Responses range from subtle stiffening to overt biting.

Quick facts

Type:
Behavioral
Typical onset:
Chronic
Body systems:
Behavioral, Nervous
Affected species:
CAT, DOG

Sources & references

  • Merck Veterinary Manual — Covers possessive and food-related aggression and counter-conditioning treatment.
  • AAHA — Behaviour guidelines addressing resource-guarding assessment and modification.

This content is for educational purposes and is not a substitute for professional veterinary advice. If you are worried about your pet, contact your veterinarian.