" it seems that the first time they get together and the bond forms , it locks them into that monogamous behaviour . you can take a female away from a male once he ' s formed a bond with her and two weeks later put him with a different female and he wo n ' t be remotely interested , " said dr aragona , whose study appears in the journal nature neuroscience 阿拉戈納博士指出: “研究發現,雄鼠與雌鼠一旦結合在一起,它們就成為了單配偶動物。若將雄鼠與配偶分開,兩周后再讓它與新的雌鼠接觸,你會發現它對新的對象根本提不起興趣。 ”