A new study on lactose tolerance among early farmers in Spain challenges a leading theory that humans developed an appetite for milk to avoid calcium deficiency. iStock hide caption

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Sticker shock in the dairy aisle? If the government fails to pass the farm bill, milk prices could spike sometime after the first of the year. George Frey/Landov hide caption

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Why $7-Per-Gallon Milk Looms Once Again
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The recent yogurt boom of upstate New York has meant more jobs in places like the Chobani plant in South Edmeston, but it has not led to a bigger dairy herd in the state. Mike Groll/AP hide caption

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New York's Dairy Farmers Squeezed By Greek Yogurt Boom
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This 5-foot plexiglass piece of art resembling a freshly poured glass of milk sits near the door at Dairy Farmers of America headquarters in Kansas City, Mo. Peggy Lowe/Harvest Public Media hide caption

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Farmers And Their Cooperative Settle Lawsuit On Fixing The Price Of Milk
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Dairy farmer Bob Andrews feeds heifers in the same barn his grandfather used. He says today "the harder you work, the further you get behind." David Sommerstein/NCPR hide caption

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Milk Producers Peer Over The Dairy Cliff
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A security guard opens the gate at the Central Valley Meat Co., the California slaughterhouse recently shut down by federal regulators after they received a graphic video of cows being mistreated. Gosia Wozniacka/AP hide caption

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A girl checks out the options at Rocky Point Creamery in Tuscarora, Md., one of seven farms on the state's ice cream trail. Ebony Bailey/NPR hide caption

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Laura Chase, a member of the MOOMilk dairy cooperative, sweeps her barn in a film still from documentary, Betting The Farm. Pull-Start Pictures hide caption

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A dairy cow peeks out of its stall at Case van Steyn's dairy in Galt, Calif. Kathleen Masterson/NPR hide caption

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California Dairy Farmers Split Over Milk Payments In Farm Bill
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Brent Ware, a member of the robotics team at Kansas State, stands next to a planting robot that won a national competition. Jeremy Bernfeld/Harvest Public Media hide caption

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A dairy farmer drives some of his Holstein cows out to pasture in the Madison County, N.Y. town of Lenox. Jim Commentucci/The Post-Standard /Landov hide caption

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John Clark pours raw milk into a glass at Applecheek Farm in Hyde Park, Vt. Toby Talbot/AP hide caption

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