US scientists have used a new procedure to restore many biological functions in pigs that had been dead for more than an hour, raising profound questions about the boundary between life and death. The project at Yale University extends a groundbreaking experiment that restored some brain functions to decapitated pigs three years ago. In the latest development, the team has restored blood circulation and cellular activity to the bodies of whole animals that were anaesthetised and then killed through an induced heart attack.
美国科学家使用新方法，恢复了死亡时间超过一小时的猪的许多生物学功能，这引发了有关生死之边界的重大问题。
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