雄性海豚要成功繁殖，或許並不是取決於力量或年齡，而是要在同伴之間受歡迎。研究員觀察印太洋瓶鼻海豚，發現最常與其他雄性海豚用哨聲溝通建立良好社交關係的雄性，能更順利繁殖更多的後代。

The key to reproduce successfully for male dolphins might not be determined by strength or age, but being popular within the social group. A study on  Indo-Pacific bottlenose dolphins found out, the males who whistle most often to other males to build social bonding, are more likely to produce more offsprings.

https://www.sciencedaily.com/releases/2022/03/220324122506.htm