I have so got to clean out my research files, so here are a few gems.
Here is a Sami family with reindeer, (courtesy of Wikipedia,) taken around 1900. (Traditional Sami clothing was not as brightly colored as more modern festive clothing, which I like very much.)
Mobile people have always had to keep their belongings few and easy to pack, including their homes. The tipi is a very efficiently designed home for a mobile people, and thus more than one group has likely hit upon the idea, independent of each other.
(The Scandinavian settlement in Greenland struggled and ultimately failed to grow enough food during their short, cool summers.)