The Peary caribou (Rangifer tarandus pearyi) is a subspecies of caribou found in the High Arctic islands of Nunavut and the Northwest Territories in Canada. They are the smallest of the North American caribou, with the females weighing an average of 60 kg (130 lb) and the males 110 kg (240 lb). In length the females average 1.4 m (4 ft 7 in) and the males 1.7 m (5 ft 7 in). The Peary caribou, called tuktu in Inuinnaqtun/Inuktitut, and written as ᕐᑯᑦᓯᑦᑐᒥ ᑐᒃᑐ in Inuktitut syllabics, is a major food source for the Inuit and was named after the American explorer Robert Peary.