Ruminants are a class of mammals such as cattle, goats, sheep, deer, giraffes, and antelope, with usually four chambers in their stomach. When these animals eat, the food enters the first chamber called a rumen. They then regurgitate the cud and chew it again to facilitate digestion. This process of rechewing the cud to break down plant matter further and stimulate absorption is called rumination. The word “ruminant” comes from the Latin ruminare, which means “to chew over again.”

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