The term used for animals that are naturally found in a specific area is "endemic." Endemic species are unique to a particular geographic location and are not found anywhere else in the world. This can occur due to factors like geographical isolation, ecological niches, and evolutionary processes. For example, the lemurs of Madagascar and the Galápagos tortoises are considered endemic species because they evolved in isolation on their respective islands. Endemism is important for biodiversity and conservation, as protecting these species often requires preserving their specific habitats.