Horses are prey animals. A vet approaching a "quiet" colic horse must know that ears pinned flat back, a swishing tail, and bared teeth are not "attitude"—they are the horse screaming, "I am in lethal abdominal pain and will kick your skull in if you touch my flank."
The Synergy of Ethology and Veterinary Science: A Modern Diagnostic Frontier zooskool animal sex high quality