This image shows the Arctic Fox's fur changing with the season.
http://upload.wikimedia.org/wikipedia/commons/e/e6/ArcticFoxesLyd.jpg
http://upload.wikimedia.org/wikipedia/commons/e/e6/ArcticFoxesLyd.jpg
This image shows the skeletal structure of the Arctic Fox.
http://fc00.deviantart.net/fs71/i/2011/151/6/6/arctic_fox_skull_by_ghostwolfen-d3ho4ky.png
http://fc00.deviantart.net/fs71/i/2011/151/6/6/arctic_fox_skull_by_ghostwolfen-d3ho4ky.png
This is a diagram of the Arctic Fox, demonstrating its important adaptations and features.
http://designeranimals2011.wikispaces.com/file/view/Arctic_Fox_Diagram.jpg/238795329/800x440/Arctic_Fox_Diagram.jpg
http://designeranimals2011.wikispaces.com/file/view/Arctic_Fox_Diagram.jpg/238795329/800x440/Arctic_Fox_Diagram.jpg