Given that cow diets contain natural polyesters, scientists suspected their stomachs would contain a cornucopia of microbes to degrade all the plant material. Photograph: Maureen McLean/Rex/Shutterstock
Given that cow diets contain natural polyesters, scientists suspected their stomachs would contain a cornucopia of microbes to degrade all the plant material. Photograph: Maureen McLean/Rex/Shutterstock
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