Veterinary science now utilizes behavioral assessments (such as the "Fear, Anxiety, and Stress" or FAS scale) alongside physical exams. If a Labrador retriever who normally loves strangers suddenly snaps at the vet, the prudent clinician asks: Is this behavior, or is this pain? Intracranial tumors, dental abscesses, and orthopedic pain are notorious for causing sudden aggression. By understanding behavior, the vet knows when to order an MRI versus when to recommend a trainer.
A dog that stops jumping on the couch might not just be "getting old"—they might be showing early signs of arthritis. The Stress Response: Understanding the four main types of behavior— instinct, imprinting, conditioning, and imitation zooskoolcom better