Carr W J, Choi S Y, Arnholt E, Sterling M H
J Comp Psychol. 1983 Sep;97(3):260-8.
During a 1-hr feeding test, hungry domestic rats (Rattus norvegicus) that had been reared individually from weaning with a domestic house mouse (Mus musculus) were less likely (p less than .05) to feed on the intact carcass of a freshly sacrificed mouse than were rats that had been reared individually with another rat. Likewise, hungry mice that had been reared individually with a rat were less likely (p less than .01) to feed on a dead rat than were mice that had been reared individually with another mouse. Regardless of the social conditions during rearing, hungry mice were more likely to feed on a dead mouse than were hungry rats to feed on a dead rat. Taken together, the present and other findings suggest that the tendency by rats to reject conspecific flesh stems, at least in part, from prior experience with conspecifics and with their own bodies. The experiential factors mediating the tendency by mice to reject conspecific flesh remain unclear.
在一项为期1小时的进食测试中，自断奶起就与家鼠（小家鼠）单独饲养的饥饿家鼠（褐家鼠），比起与另一只大鼠单独饲养的大鼠，食用刚处死小鼠的完整尸体的可能性更小（p小于0.05）。同样，与大鼠单独饲养的饥饿小鼠，比起与另一只小鼠单独饲养的小鼠，食用死大鼠的可能性更小（p小于0.01）。无论饲养期间的社交条件如何，饥饿的小鼠比饥饿的大鼠更有可能食用死小鼠。综合来看，目前的研究结果及其他发现表明，大鼠拒绝同类尸体的倾向至少部分源于此前与同类及自身身体的经历。介导小鼠拒绝同类尸体倾向的经验因素仍不清楚。
