Scientists: We kept pig brains alive 10 hours after death. Bioethicists: “Holy shit.”

By Brian Resnick Around 15 minutes after a mammal’s brain is cut off from oxygen, the organ is supposed to die. Without life-giving oxygen, the cells of the brain quickly starve. Some of the cells burst open, while the chemistry of others becomes so imbalanced that their membranes break down. This frenzied spiral ends one …