Repetitive behaviors like tail-chasing or excessive licking that mirror human OCD.
At the most fundamental level, veterinary science provides the biological scaffolding for understanding behavior. A sudden onset of aggression in a docile dog is rarely a "personality flaw"; to the veterinarian, it is a clinical symptom. zoofilia extrema
Modern veterinary science now recognizes that behavioral shifts are often the of underlying pain, neurological disorders, or metabolic imbalances. to the veterinarian