Crossing frozen tundra, the 15 competing teams and their dogs will endure temperatures of minus 25C or lower.
A dozen out of the 15 teams finished the race which began three weeks ago.
Carcasses of 19 beheaded mammals found on the coast of Beringia National Park - with their penile bones cut out.
Most northerly palaeolithic site found on Arctic island of Stolbovoy, part of lost continental link between Siberia and Alaska, believe scientists.
The remarkable annual Beringia dog sled race will go through some of the planet's remotest and most challenging territory in Kamchatka.
DNA research of Native Siberians and Native Americans revealed by Science and Nature journals.
The world famous traveller made call ahead of his latest epic adventure by dog sled to Greeland via the North Pole.
Remains of the child suggest an 'unknown European invasion of Siberia deep in ancient times'.
Stunning statue with 'encrypted codes' is 11,000 years old, even more ancient than previously believed.