Pain in Exotic Pets, many exotic pets are prey species. Their instincts will help protect them from predators when they are injured or sick,” he explains. “They often become very still and do not perform normal behaviors. While this behavior could help keep them hidden in the wild, it often does not signal illness or pain to owners. Most of these pets will not vocalize when they are in pain unless the pain is severe and acute. Some pets will stop eating. Choose a Knowledgeable Veterinarian