Cows graze in front of the Rosengarten mountain massif in northern Italy. Pasture grazing is practiced throughout the Alps. Matthias Schrader/Associated Press hide caption

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Matthias Schrader/Associated Press

Archaeologists believe that ancient farmers used pots made from these pottery shards to make cheese — a less perishable, low-lactose milk product. Nature hide caption

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Nature

Archaeologists Find Ancient Evidence Of Cheese-Making

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Tim Opper, of Cabot Cheese, inspects equipment that separates whey protein from sugar in the company's whey processing plant. Dan Charles/NPR hide caption

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Dan Charles/NPR

You Can Thank A Whey Refinery For That Protein Smoothie

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