Veterinarians use (the study of animal behavior in natural environments) to identify health issues that might otherwise remain hidden. The Science of Animal Behavior and Welfare - PMC - NIH

Modern veterinary students learn:

Animal behavior and veterinary science are deeply interconnected fields that focus on understanding how animals interact with their environment and how their physical health influences their actions. Core Concepts of Animal Behavior

A decade ago, most veterinary schools offered a single elective in animal behavior. Today, the American Veterinary Medical Association (AVMA) requires that accredited colleges teach behavior as a core competency. The European College of Animal Welfare and Behavioural Medicine (ECAWBM) offers board certification in the specialty.