Sardinian dhole

The Sardinian dhole (Cynotherium sardous), also known as the Sardinian fox, was an endemic insular canid, that occurred on the Mediterranean islands of Sardinia (which currently belongs to Italy) and Corsica (which currently belongs to France). Its range was because both Sardinia and Corsica were joined for much of the Pleistocene. It became extinct when humans began to settle on the island. Its scientific name means "Sardinian dog-beast".

When the ancestor of this canid, a species of the wolf-sized Xenocyon, became confined to the island, its diet became limited to small and fast prey, such as rodents and rabbits. This lack of large prey caused the Sardinian dhole to evolve into a small sized (perhaps 10 kg) canid. This view of Cynotherium as a predator specializing in small, fast prey is supported by an examination of the animal's anatomy. The evolution of short, powerful limbs, a low neck carriage and increased head and neck mobility suggests an animal well suited for stalking and then quickly pouncing on or running down small prey.