研究显示，鱼类的背鳍和臀鳍能够提供更多（15%）的推力，帮助尾鳍游动，提供更多的动力。
https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/computational-analysis-of-vortex-dynamics-and-performance-enhancement-due-to-bodyfin-and-finfin-interactions-in-fishlike-locomotion/036218CC94C2A57466233CED54296FF3
