Yes, ruminant animals have stomach compartments. They have a four-chambered stomach that allows them to efficiently digest plant material. The four compartments are the rumen, reticulum, omasum, and abomasum. The rumen is the largest compartment and is where microbial fermentation of plant material takes place. The reticulum helps to regurgitate and re-chew food, while the omasum helps to absorb water and nutrients. The abomasum is similar to the stomach of non-ruminant animals and is where further digestion and absorption of nutrients occur.