Beringia Land-bridge

In 2010 the existence of a previously unknown archaic human population was revealed following the DNA sequencing of a finger bone over 41,000 years old.  It was discovered in 2008 in the Denisova Cave, a Stone Age site located in the Altai Mountains of southern Siberia. Three molars, two of enormous size, were also retrieved. They too belong to this same group of archaic humans, who are today known as the Denisovans.