Only when life is so bountiful can females afford to be so choosy. 只有在生活如此富饶时 雌性才能如此挑剔
animals can't afford to be choosy about what they eat. 动物们也无权挑剔自己的饮食
Generations of choosy females have driven the evolution of these remarkable displays. 一代代追求异性的动力 促使他们进化出了不平凡的外表