Might these male-male copulations provide some benefit tothe participants ?
也许这种雄雄交配能为参与者提供好处？
Usual copulations of propositions , is , and is not .
通常的"是"与"不是"等连系词。
We 'd shoot a super 8 film of his daily copulations with the neighbor 's pup , and make anexperimental short with an operatic score .
然后我们用超8胶卷记录下他每天和隔壁狗狗的交配，再配上歌剧做成一个试验短片。
" So , I concluded that since females don 't need more copulations , they close their wings to conceal themselves , " dr ide said in an interview with the bbc .
Thus , mammals evolved numerous adaptations for inbreeding avoidance : dispersal from natal groups ( usually sex-biased ) , kin recognition and avoidance , and a preference for extra-pair or extra-group copulations rather than copulating within one 's group .
