Epidemiology is concerned with the incidence of disease in populations and does not address the question of the cause of an individual's disease. This question, sometimes referred to as specific causation, is beyond the domain of the science of epidemiology.
Ninetales is the evolved form of Vulpix, who evolves by the use of a Fire Stone, while Alolan Ninetales is evolved with an Ice Stone.
The oldest known fossil species within Vulpes is Vulpes riffautae, which dates back to the late Miocene (which is within the Neogene) of Chad. The deposits these fossils are found within are about 7 million years old, which might make them the earliest Canidae in the Old World.he oldest known fossil species within Vulpes is Vulpes riffautae, which dates back to the late Miocene (which is within the Neogene) of Chad. The deposits these fossils are found within are about 7 million years old, which might make them the earliest Canidae in the Old World.