Les sources

https://www.google.ch/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwj_s66Qj4XaAhXKYVAKHZ_bB_kQjRx6BAgAEAU&url=http%3A%2F%2Fwww.dinosoria.com%2Frenard_polaire.htm&psig=AOvVaw152DBTUb32udbEdgJsbFQf&ust=1521986277821945

https://www.google.ch/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=2ahUKEwiJisXcl4XaAhUMmbQKHffzDPgQjRx6BAgAEAU&url=http%3A%2F%2Fbuzzly.fr%2F25-photographies-sublimes-dans-l-intimite-du-renard-au-coeur-du-cercle-arctique-35.html&psig=AOvVaw04IZnZKBwaZ-3HMiUIRVZ8&ust=1521988657270353

https://www.google.ch/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwjHsKnAmIXaAhWCaFAKHQifCvYQjRx6BAgAEAU&url=http%3A%2F%2Fchatsdemoncoeur.forumactif.org%2Ft3563-renard-polaire&psig=AOvVaw04IZnZKBwaZ-3HMiUIRVZ8&ust=1521988657270353

http://www.gramat-parc-animalier.com/fr/le-parc-et-ses-animaux/mammif%C3%A8res/renard-polaire

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwjD1aLL2-7aAhXC2qQKHQANDTAQjRx6BAgBEAU&url=http%3A%2F%2Ffootage.framepool.com%2Ffr%2Fshot%2F997767933-renard-polaire-sortir-taniere-animal-entrer&psig=AOvVaw07a9xCq8-ceo5pjQ0z6ZOu&ust=1525614316415700