Another possibility, therefore, is that she can assess male quality very well, and will opt for a bit on the side12 if the bit in question13 is superior to the mate she has settled for.
Another possibility, therefore, is that she can assess male quality very well, and will opt for a bit on the side12 if the bit in question13 is superior to the mate she has settled for.
因此,另一个可能是她能很好地估计雄鸟的品质,如果发现某雄鸟比她原来的配偶优越,她将选择搞点婚外恋。