Manipulations and Motivations: Sacrifice
How far might one individual go to save another? Where is the threshold of sacrifice? We separated twelve offspring of various species from their parents and established them in adjacent cells. The offspring were subjected to steadily increasing levels of physical and psychological torment. The parents were told that by pulling a lever, the torment would cease, but would result in their own deaths. All twelve pulled the lever, with test case five lasting the longest - he died around midday.