In a primate sanctuary, a troop of capuchin monkeys was exhibiting abnormal behavior. They were pacing back and forth in their enclosure, displaying signs of stress and anxiety. The sanctuary's veterinarians were concerned and sought to identify the cause of this behavior.

As the days went by, Emma, Ryan, and their team continued to monitor Max's progress, both with the pack and in his interactions with humans. The little terrier had become an ambassador for his species, teaching them valuable lessons about resilience, social bonds, and the importance of compassion.

: Assessing whether an animal can express its natural behavioral repertoire, such as foraging or social interaction. Affective State

A sudden increase in aggression in an older dog is frequently not a "bad attitude," but rather a reaction to the chronic pain of osteoarthritis.

Her initial assessment suggested that the troop was experiencing stress due to a recent change in their social dynamics. A new male had been introduced to the group, and the existing hierarchy was being challenged.

: Behaviors are generally classified as Innate (instinctual) or Learned (conditioning, imprinting, imitation) [33].

Veterinarians use behavior to detect hidden illness. Examples: