Hairy rhinoceros fossils are mostly found in northern Eurasia, and occasionally found in Northeast Plain, North China Plain, Tibet and other places  The hairy rhinoceros has a unique structure-a nasal septum, simply the bone in the middle of the nose  The study found that the nasal septum of Tibetan hairy rhinoceros fossils is only an incomplete bone, and the nasal septum of Tibetan hairy rhinoceros fossils found earlier in northern Asia and Siberia is more complete than that of Tibetan hairy rhinoceros
In order to survive in the ice and snow environment, the nasal septum of the haired rhinoceros evolved from soft to hard and finally formed a complete bone.
 This shows that the Tibetan hairy rhinoceros has a more primitive form