Department of Anthropology and California Primate Research Center, University of California, Davis.
Am J Primatol. 1981;1(1):91-94. doi: 10.1002/ajp.1350010111.
Six mother-infant pairs in a group of captive rhesus monkeys (Macaca mulatta) were observed for six months. "Infant grabs" by others and mothers' resistance to grabs were scored. More full siblings grabbed infants than either paternal half-siblings or nonrelatives. Mothers resisted grabbing by more nonrelatives than by paternal half-siblings. Although the maternal effect suggested by full sib-infant interactions is expected, the paternal effect revealed by mothers' tolerance of paternal half-sibs, but not full siblings, over nonrelatives is unexpected.
在一组圈养猕猴（Macaca mulatta）中，观察了 6 对母婴对，共六个月。记录了其他猴子对婴儿的“抢夺”和母亲对抢夺的抵抗行为。与父亲的半同胞相比，更多的全同胞抢夺了婴儿。母亲对抢夺的抵抗程度，非亲属要甚于父亲的半同胞。尽管全同胞之间的互动所表现出的母性效应是可以预期的，但母亲对父亲的半同胞比对非亲属更宽容，这揭示了父性效应，这是出乎意料的。
