Abstract. Knowledge of animal behavior is an extremely important component of modern veterinary practice. Appreciation of species- National Institutes of Health (.gov)
A 12-year-old cat presented for "sudden aggression." Physical exam was unremarkable, but behavioral history revealed night-time yowling and weight loss despite good appetite. Serum T4 confirmed hyperthyroidism. After radioactive iodine treatment, aggression resolved entirely.
The takeaway: A thorough veterinary workup must always precede a behavioral modification plan. To treat the mind, you must first clear the body.