Origin of the domestic dog to the domestic dog and modern wolf lineages. The gray wolf is thought to be ancestral to the domestic dog, however its relationship to "C. variabilis", and the genetic contribution of "C. variabilis" to the dog, is the subject of debate. The Zhokhov Island (8,700 YBP) and Aachim (1,700 YBP) canid haplotypes fell within the domestic dog clade, cluster with S805, and also share their haplotypes with – or are one mutation away from – the Tibetan wolf ("C. l. chanco") and the recently-extinct Japanese wolf ("C. l. hodophilax"). This may indicate that these canids retained the genetic signature of
Dog anatomy of Fibula Metatarsals: Talus, Calcaneus, Trochlear Ridges, Central Tarsal Bone, First, Second, and Third Tarsal Bones Vertebra Body, Pedicles, Laminae, Spinous Process, Transverse Process (Wings), Articular Process, Vertebral Foramen, Intervertebral Foramina, Atlas (C1), Axis (C2), dens, Ventral Lamina (on C6) Pelvis: Acetabulum, Ilium, Ischium, Pubis Skull In 1986, a study of skull morphology found that the domestic dog is morphologically distinct from all other canids except the wolf-like canids. "The difference in size and proportion between some breeds are as great as those between any wild genera, but all dogs are clearly members of the same species." In 2010, a