- http://environment.nationalgeographic.com/environment/habitats/tundra-map/
- clipart from Word
- https://mpms3rdperiod.wikispaces.com/Group+3+Biome
- http://arctictundraproject.wordpress.com/2013/10/29/clmate-of-the-alaskan-tundra/
- http://www.emperorpenguinfacts.com/
- http://www.blueplanetbiomes.org/tundra_animal_page.htm
- http://www.tundraanimals.net/guide/rockptarmigan.html