Nomadic travelers in central and east Asia were able to survive the harsh conditions of the tundras by adapting to the harsh environment that is engulfing the area or region. Also they keep moving with their hut or shelter and also may uses oxen for transportation and carrying logistics.
Hope this helps :))
A dolphin is sort of large, hope it hepls
The Troposphere, Stratosphere, <span>Mesosphere, Thermosphere, and the Exosphere</span>
