Analysis of a small bone excavated at the Denisova Cave in SW Siberia shows that the bone, from a young girl, had DNA from a Denisovan father and a Neanderthal mother. The father came from a population living locally to the Denisova caves while the mother seems to have come from a group living thousands
The Viking voyages and their DNA legacy.
DNA analyses carried out on samples from the present day inhabitants of Great Britain and Norway give a good indication of the extent to which the two populations mingled during the Viking era. 'Norwegian' DNA varies between 1% in Wales and Ireland to 29% in Orkney and Shetland, areas which the Vikings basically took over. On the
Denisovan DNA helps Tibetans survive at high altitudes
Tibetans are adapted to the low oxygen content at the high (>4000 m) altitudes where they live thanks a lower haemoglobin content in their blood which is again due to a specific gene EPAS1. This gene is more or less restricted to Tibetans, for example it is absent in their neighbours the Han Chinese. But