is that competition drives adaptation. 竞争推动适应

118. The first rule of life, that the best adapted will win through...
     生命的第一条法则适者生存
119. ...has produced the huge diversity that exists today.
     产生了现存的巨大的生物多样性
120. The next rule of life
     生命的第二条法则是
121. is that competition drives adaptation.
     竞争推动适应
122. And the most acute competition comes from one's own kind.
     最激烈的竞争来自同类
123. A male terror bird.
     一只雄性骇鸟
124. His territory is the lakeshore.
     湖岸是它的领地

来自《我们星球上的生命 第一季 第一集 Life on Our Planet S01E01 生命法则》第 121 行