Animals are evolutionarily programmed to hide pain. In the wild, a limping wolf is a dead wolf. Consequently, domestic animals have developed subtle pain behaviors that untrained eyes miss.
The fields of animal behavior and veterinary science are increasingly intertwined, shifting from a focus on purely physical health to a more holistic "One Welfare" approach. Understanding how an animal interacts with its environment—a core definition of Animals are evolutionarily programmed to hide pain
Veterinary science has now created validated pain scales (e.g., the Glasgow Composite Measure Pain Scale) that rely heavily on behavioral observation. A vet who cannot read a "stoic" cat’s subtle withdrawal will miss chronic pancreatitis. A vet fluent in behavior will catch it early. The fields of animal behavior and veterinary science
Veterinarians who understand behavior know that a "tough" patient is usually a terrified patient. By changing the environment (soft bedding, hiding boxes for cats, non-slip flooring), aggression rates drop by over 50%. A vet fluent in behavior will catch it early