The Tundra is inhabited by a few predators such as the Polar bear, Snow owl, Artic fox, and Grey wolf. Musk Ox and Caribou are some of the large consumers that call the tundra home. Also small rodents like the lemming and some birds live and eat on the tundra.
The Musk Ox is left over from prehistoric times where it roamed much of
the northern hemisphere. Today the Musk Ox is only found in northern
Canada and Greenland. It is a grazer that eats small grass and lichens,
but only eats 1/6th of what a domesticated cattle needs to eat. Full
grown a Musk Ox can weigh up to 1000 pounds.
Snowy Owls live in the tundra most of the year but will leave in hard
winters to find more food. The snowy owls diet consists of ten lemmings
or other small rodents a day. Because of the 24 hour light period
in the tundra Snowy owls had to adapt and do there hunting during both
day and night. The owls perch on the highest ground they can find
in the tundra because there is no trees to hunt from
Lemmings are the major food supply of the tundra's
predators. Because of this lemmings reproduce very quickly often
having three litters a year with a 20 day pregnancy. Within a month
the new lemmings can have their own litters.