Modern agriculture keeps cows, calves, pigs, chickens, turkeys, and other animals in small overcrowded stalls, cages, crates, or sheds where they're often unable to take a step or even turn around for their whole lives. Most never get a breath of fresh air until they are prodded and crammed onto trucks for a nightmarish ride to the slaughterhouse, often through weather extremes and always without food or water. The animals are hung upside down and their throats are sliced open, often while they're still conscious.
Hens live their entire lives crowded into cages so small they're barely able to move.
They lose their feathers and their skin turns red and raw from rubbing against the wire walls. To keep them from pecking each other in frustration, factory workers slice off chicks' beaks with a hot blade, sometimes taking part of their tongues or faces with it. Female pigs are kept pregnant or nursing constantly and are squeezed into narrow metal stalls where they can't turn around or even nuzzle their babies. Males are castrated and have their tails cut off without any painkillers. Cows raised for beef are branded, castrated, and dehorned without anesthesia.