pursuing a single female. 追逐同一头雌鲸

309. ...allowing the whales to generate sustained bursts of energy.
     所以能够产生持续的能量爆发
310. When competing for a mate,
     在争夺配偶的时候
311. humpback males exploit this ability to the full...
     众多雄性座头鲸会充分利用这项能力
312. pursuing a single female.
     追逐同一头雌鲸
313. This is much more than about speed.
     这不仅仅是速度的问题
314. The males stay as close to the female as possible
     雄鲸尽可能靠近雌鲸
315. so she can judge their strength and stamina.
     以便雌鲸能够评估自己的力量和耐力

来自《我们星球上的生命 第一季 第七集 Life on Our Planet S01E07 地球继承者》第 312 行