Although cows ingest plenty of sand and other bits of grit with their grass, their teeth are protected from being ground-down thanks to the way their first stomach "washes" their cud before they re-chew it. (IMAGE)

University of Göttingen

Although cows ingest plenty of sand and other bits of grit with their grass, their teeth are protected from being ground-down thanks to the way their first stomach "washes" their cud before they re-chew it.

Caption

Although cows ingest plenty of sand and other bits of grit with their grass, their teeth are protected from being ground-down thanks to the way their first stomach "washes" their cud before they re-chew it.

Credit

Jürgen Hummel

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