About 150 Jersey cows in the rolling terrain at Rivendale Farms in Bulger, some 25 miles west of Pittsburgh, wear Fitbit-like collars that monitor their movement, eating and rumination patterns. They are milked not by humans but by robotic machines, reports the New York Times

IN OTHER NEWS:  White House emails highly vulnerable to hackers and spammers, data shows (WASHINGTON POST); Change your email password: 773 million records exposed in monster breach (WIRED).