Thu, 12/21/2023 - 11:00 Tech Insider Farmers bread turkeys to grow so big, so fast, that their skeletons couldn't keep up and their legs gave in. Heritage turkey breeds, like this one, don't have that problem.Elizabeth Beard Tags Science, Food, turkeys, Christmas, thanksgiving, Farms, animals, foody, science-freelance Source Some turkeys are so big they have a hard time walking, but scientists have foun…