A few minutes ago at 4 pm I was driving along a 2-lane well-used paved county road that has small farm fields on both sides. On one side the farmer has a herd of about 25 black and white dairy cows. I noted that the herd was running, really sprinting, in a messy V shape following the cow at the head, down the pasture more or less toward the outbuildings of the farm. I'm a city girl, I've seen cows walking sedately in a group to be milked or fed, or wander over to greet a human they know who may be holding a treat, but I've never seen them gallop. I couldn't see the entire field but I didn't see anything scary running behind them. Does anyone know what was going on?