Ovibos moschatus
Muskoxen are shaggy Pleistocene relics that survived the end of the Ice Age in Arctic refugia. When threatened, adults form a ring or line with horns facing out to shield calves from wolves. Their underwool, qiviut, is one of the warmest natural fibres on Earth. Hunted close to extinction by 1900, they were re-established across the Arctic in the twentieth century and remain a symbol of the far North.