At Tony Louters' dairy farm in California's Central Valley, cows don't wear bells—they sport high-tech collars loaded with sensors and WiFi. These collars, developed by Merck, act as early-warning ...

Having grown up on a small dairy farm in County Armagh, Northern Ireland, Terry Canning was well aware that dairy cows were vital to his upbringing—but they weren’t meant to be his future. Instead, ...