Commercial turkeys have been bred for such extreme breast muscle growth that many cannot mate naturally, walk comfortably, or sustain normal physiological functions.
Commercial turkeys provide perhaps the starkest example of how breeding selection can create animals physiologically incapable of normal existence. The inability to mate naturally is a visible symbol of a broader problem - bodies built for production efficiency rather than functional living. Leg disorders cause chronic pain. Cardiovascular strain creates a permanent physiological burden. Like broiler chickens, turkeys are victims of selection choices that prioritized growth rate over animal welfare in every meaningful sense.