According to their study, they used a breakthrough bioreactor system that acts like a circulatory system, which helped them ...

and when humans bred chickens for meat, they prized the heaviest birds. So modern domesticated chickens are large and heavy, with wings too small and inadequate for long-distance flight.

Also known as meat chicks, the birds eventually grow into the plump chickens that Islanders buy at grocery stores, or raise on their own property for food use. Sally Bernard, who owns Barnyard ...