Primitive or aboriginal dogs are canids that have kept close to the original form and have evolved with little or no purposeful human intervention. They spread throughout the world with the first colonizers but preserved a loose association with man.
Primitive dogs in all countries have a very similar, typical morphology known as the "long-term pariah morphotype" (LTPM) or primal body design from which most other dog forms are derived: a wolf or fox-like appearance with wedge-shaped head and a pointed muzzle, almond eyes, erect ears, for optimal sound retrieval and possibly body temperature regulation, and a long, curved tail.
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