Passage: Aulavik National Park of Canada, a fly-in park, protects about 12,274 km2 (4,739 sq mi) of Arctic lowlands at the northern end of the island. The park has the highest concentration of muskoxen on earth, and is home to the endangered Peary caribou. Mto Thomsen unapita kupitia hifadhi hiyo, na ni mto wa kaskazini zaidi unaoweza kusafirishwa (kwa mtumbwi) huko Amerika Kaskazini. Ptarmigan na ravens huchukuliwa kuwa ndege pekee wa mwaka mzima katika hifadhi hiyo, ingawa spishi 43 hutumia eneo hilo kwa msimu.
Ptarmigan na kunguru