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Since a cow tends to swallow food whole (using her very powerful and rough tongue to gather feed or forage and pull it into her mouth to bite and swallow) and then, while resting, bring up the partly digested/fermented matter to rechew it again, a cow does not need the upper incisors to bite off plants like a horse would, just her slanted lower molars and her powerful tongue to do the job while she grazes. Her wide, flat molars are there for the time when she is resting and wishes to chew her cud, not to chew her food before she swallows like we humans do commonly. That is how a cow's mouth is suited to her diet.

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11y ago

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