Iowa bred mare

"My friends thought I was nuts when I got back into the horse business," says Maynard Thompson. "But when those babies are about three to five days old, and you take them outside and turn them loose for the first time, every one of them thinks he's the toughest thing out there. And if that doesn't put a smile on your face, you're not breathing." Which is why Thompson perseveres on 15 acres of gently undulating terrain, a few miles south of Tama on the Iowa River. "I'm 71 years...