Animal diseases are illnesses that affect various species of animals, including pets, livestock, and wildlife. These diseases can be caused by bacteria, viruses, parasites, or environmental factors. Common examples include canine parvovirus in dogs and foot-and-mouth disease in cattle. Understanding these diseases is crucial for maintaining animal health and preventing outbreaks. Preventing and controlling animal diseases often involves vaccination, proper nutrition, and good hygiene practices. Veterinarians play a key role in diagnosing and treating these conditions. Additionally, monitoring wildlife populations helps to identify emerging diseases that could impact both animals and humans, highlighting the importance of One Health initiatives.