for a sequence analysis, which showed that its genome consists of 16,338 base pairs. Further studies using the aurochs whole genome sequence have identified candidate microRNA-regulated domestication genes. Distribution and habitat The aurochs was widely distributed in North Africa, Mesopotamia, and throughout Europe to the Pontic–Caspian steppe, Caucasus and Western Siberia in the west and to the Gulf of Finland and Lake Ladoga in the north. Fossil horns attributed to the aurochs were found in Late Pleistocene deposits at an elevation of on the eastern margin of the Tibetan plateau close to the Heihe River in Zoigê County that date to about 26,620±600 years BP. Most fossils in China were found in plains below in Heilongjiang, Yushu, Jilin, northeastern Manchuria, Inner Mongolia, near Beijing, Yangyuan County in Hebei province, Datong and Dingcun in Shanxi province, Huan County in Gansu and in Guizhou provinces. Ancient DNA in aurochs fossils found in Northeast China indicate that the aurochs survived in the region until at least 5,000 years BP. Fossils were also excavated on the Korean Peninsula, and in the Japanese archipelago. Landscapes in Europe probably consisted of dense forests throughout much of the last few thousand years. The aurochs is likely to have used riparian forests and wetlands along lakes. Pollen of mostly small shrubs found in fossiliferous sediments with aurochs remains in China indicate that it preferred temperate grassy plains or grasslands bordering woodlands. It may have also lived in open grasslands. In the warm Atlantic period of the Holocene, it was restricted to remaining open country and forest margins, where competition with livestock and humans gradually increased leading to a successive decline of the aurochs. Extinction In southern Sweden, the aurochs was present during the Holocene climatic optimum until at least 7,800 years BP. In Denmark, the first known local extinction of the aurochs occurred after the sea level rise on the newly formed Danish islands about 8,000–7,500 years BP, and the last documented aurochs lived in southern Jutland around 3,000 years BP. The latest known aurochs fossil in Britain dates to 3,245 years BP, and it was probably extinct by 3,000 years ago. The African aurochs may have survived until at least to the Roman period, as indicated by fossils found in Buto and Faiyum in the Nile Delta. It was still widespread in Europe during the time of the Roman Empire, when it was widely popular as a