what is the difference between a reindeer and a caribou
Reindeer (Rangifer tarandus) are semi-domesticated caribou. Although similar, there are fundamental differences between reindeer and their wild cousins, caribou. Reindeer are shorter and stouter. Reindeer bulls are smaller than caribou bulls, but cows may weigh the same as caribou cows. Coloration differences may be too subtle to notice between many reindeer and caribou, however, reindeer tend to be lighter with occasional pinto or white haircoats.
Reindeer and Caribou look different, but they probably are the same species. Caribou are large, wild, elk-like animals which can be found above the tree-line in arctic North America and Greenland.