The other male gamete fuses with the secondary nucleus, forming the primary endosperm nucleus. 另一个雄配子和次生核结合形成初生胚乳核。
Some male Borzois are aggressive with other male dogs. 一些公猎狼会挑衅其他的公犬。
Previous research has shown that higher prenatal exposure to testosterone and other male hormones leads to a lower 2D : 4D ratio. 早先研究显示,胎儿期较高的睾丸激素和其它雄性激素水平会导致较低的2d:4d数值。
Other male pills are under development but many of them are based on hormones that trick the brain into switching off sperm production. 还有其他的男性避孕药也在研制中,但其中多是基于那些能让大脑关闭精子产生的激素。
After a female chooses a large male, he places his sperm packet inside her oviduct and stays with her until she spawns so that no other male has a chance to mate with her. 在雌性墨鱼选择了大个儿雄性之后,该雄性墨鱼将自己的精包放进雌性的输卵管里,然后跟雌性厮守,直到大量产卵为止,以便其他雄性找不到机会与之交配。