Known as caribou in North America, reindeer also live in Europe, Russia and Asia. Both male reindeer, called bucks, and female reindeer, called does, have antlers. The antlers of each reindeer are unique and shed every winter.
Reindeer are plant eaters, or herbivores. The diet of the reindeer includes lichen, grass and plants. Reindeer weigh between 250 and 700 pounds and can run 50 miles an hour. Female reindeer give birth to one or occasionally two babies, called fawns, once a year. Fawns weigh 10 to 11 pounds when they are born, and their mothers feed them milk that has more fat than cow's milk.