The difference between the Eskimo igloo and the Indian tepee was insulation: the igloo's walls were solid and airtight whereas those of the tepee permitted a great deal of air to enter.
Each June, after a long journey into the mountainous tundra of northern Norway, the Gaup family waits for the herd in tepee-like structures called lávut.
The family spent a month in Mongolia in 2007, riding across the steppe towards a sacred lake, then on to see the country's most renowned shaman, an old man called Ghoste who lives in a tepee.
