Musk ox (Ovibos moschatus) The musk-ox is the last one of the big prehistoric animals. They used to live with mammoths and woolly rhinos during the last ice age - even in our country. The mammoth and the woolly rhino became extinct ages ago, but the musk-ox still lives in the barren and cold tundra areas. The musk-ox died out in Scandinavia 3 000 years ago. In the summer of 1971, though,  a handful of musk-oxen wandered from Norway into the Province of Härjedalen. In the mid-80s there were about 35 animals. Its only natural enemy is the wolf. The grown-ups will form a tight ring (with their horns pointed outwards) around their calves when wolves attack. It is extremely difficult for the wolves to get past this "living wall" and take the calves.

Order: Even-toed ungulates (Artiodactyla)

Family: Hollow-horned animals (Bovidae)

Weight: 225-400 kilos (bulls are very much heavier than cows)

Life span: More than 20 years

Mating period: July-August

Calves: Are born in April-May the year after mating