Cow is a female adult animal of the bovine group. Cows, bulls, and steers are called cattle.
Cattle have a stomach with four compartments.
The four compartments are the rumen, the reticulum, the omasum, and the abomasum. This kind of stomach enables them to bring swallowed food back into their mouth to be chewed and swallowed again. Animals with such stomachs are called ruminants. When cattle eat, they first chew their food only enough to swallow it. The food goes down the food pipe into the rumen.