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The conclusion is that ancient people used dog sleds to cover these remarkable distances 'at the ends of the earth'.At the time Zhokhov Island - now part of the De Long Islands in the New Siberian archipelago - was connected to the Siberian mainland, and the climate was milder than today. Obsidian was used by ancient people at a famous site on Zhokhov for tools: the black or green volcanic glass, an extrusive igneous rock, was a material of choice.‘The archaeological data from Zhokhov therefore indicate a super-long-distance Mesolithic exchange network,’ conclude the international team of researchers in the Antiquity paper.
The article states: 'In winter time, such a journey required particular skills and technology, such as skiing or the use of snow shoes, both of which were common elsewhere in the Arctic from at least the Early Holocene.
‘Sledge transport formed an important part of the subsistence technology of the Zhokhov site’s inhabitants.