Extreme temperature spikes in the Russian Far East have led to the exposure of a remarkably preserved 6,000-year-old settlement in the Kolyma River Basin. Among the finds are several whalebone sledges featuring intricate ivory carvings of arctic fauna, marking the oldest known examples of sophisticated transportation technology in the region.
The lack of oxygen within the frozen earth prevented the decay of organic materials, preserving leather lashings and decorative birch-bark linings that would otherwise have vanished. These artifacts offer unprecedented insight into the environmental history of the Neolithic Arctic, showing how early human groups adapted to shifting sea-ice levels and migratory patterns of marine mammals during the Holocene Thermal Maximum.