The males stay as close to the female as possible 雄鲸尽可能靠近雌鲸
humpback males exploit this ability to the full... 众多雄性座头鲸会充分利用这项能力
While the males evolved colorful costumes and intricate dance moves... 雄性进化出了 多彩的服装和精美的舞步
and the males rush in to fertilise them. 雄性争先恐后使鱼卵受精
All females, no males. What's going to happen? 全是雌性 没有雄性 会发生什么