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.
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Biological roots of empathically motivated helping behaviour, strong evidence - Video
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