Fig. 1 Origin and migration of the arctic fox (Imaged by  Xiaoming Wang)

Fig. 2 A newly discovered 3- to 5-million-year-old Tibetan fox from the Zanda Basin of the Himalayan Mountains, Vulpes qiuzhudingi, as the likely ancestor of the living Arctic fox (Vulpes lagopus)(Imaged by Xiaoming Wang)

Fig. 3 Artist reconstruction of the Zanda fauna from the Pliocene about 5-2.5 million years ago (artist: Julie Selan)