Science tells us that a healthy animal is one that is both physically fit and mentally at ease.

exhibit "active sleep" phases (similar to REM sleep) where their skin flashes through various colors and patterns, potentially "reliving" events like hunting or hiding . Chinstrap penguins

Veterinary science has made massive strides in psychopharmacology. Medications like SSRIs (Selective Serotonin Reuptake Inhibitors) are now used alongside behavioral training to treat severe anxiety and OCD in animals. Understanding the neurobiology of the animal brain allows veterinarians to prescribe treatments that rebalance brain chemistry, making training and rehabilitation possible. Beyond the Clinic: Agriculture and Conservation

The first interaction between a veterinarian and an animal is a behavioral negotiation. A fearful, aggressive, or overly stressed patient cannot be examined thoroughly.