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Explore Biological roots of empathically motivated helping behaviour, strong evidence with 32,308 views, 231 likes, and 34 comments. Experience the impact of this video content that has captured audience attention.

Can rats display empathy by alleviating the suffering of an unrelated rat? To find out, psychologists Inbal Ben-Ami Bartal, Jean Decety, and Peggy Mason at the University of Chicago tested whether rats would rescue a trapped cagemate without any obvious reward. The group found that rats would release trapped cagemates from restrainers, but ignored empty restrainers or those containing only a toy rat. In trials with chocolate as a distraction, the rats would free their trapped cagemate before sharing the chocolate, a preferred rat treat. In the accompanying video, paper author Peggy Mason narrates several runs of the experiment. http://www.sciencemag.org/content/334/6061/1427

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