Caribou Have A Four-Chambered Stomach The caribou has an incredibly unique and complex digestive system. A caribou’s stomach has four compartments: the rumen, reticulum, omasum, and abomasum.

The reindeer, known as caribou when wild in North America, is an Arctic and Subarctic-dwelling deer. About 1 million live in Alaska, and a comparable number live in northern Canada. There are an ...