With these mammals... 对于这些哺乳动物来说

115. It's the chance he's been waiting for.
     等待已久的机会终于到来
116. He has a rival.
     居然还是有对手
117. This time, they're evenly matched.
     这次它们旗鼓相当
118. With these mammals...
     对于这些哺乳动物来说
119. ...size matters.
     大小很重要
120. But even the mightiest Megacerops
     但即便是最强大的巨角犀
121. couldn't overcome the planet's next great challenge.
     也无法克服 地球面临的下一个严峻挑战

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 118 行