Robots are taking over much of the daily manual labor at dairy farms, including milking, feeding, cleaning, and more. It makes dairy farmers’ lives easier, and makes the cows happier, too. “Mooooo.” This dairy barn is full of cows, as you might expect. Cows are being milked, cows are being fed, cows are being cleaned up after, and a few very happy cows are even getting vigorously scratched behind the ears. “I wonder where the farmer is,” remarks my guide, Jan Jacobs. Jacobs doesn’t seem especial...