Like a fox in a chicken coop, 就像狐狸进了鸡窝

127. Herds of Lystrosaurus are an easy target.
     水龙兽群很容易受到攻击
128. They have no defense against this new type of reptile...
     面对这种新型爬行动物 它们毫无办法
129. or even awareness of the threat it poses.
     甚至无法意识到对方所带来的威胁
130. Like a fox in a chicken coop,
     就像狐狸进了鸡窝
131. an Erythrosuchid can kill more than it needs.
     引鳄可以肆意杀戮
132. Lystrosaurus was the unwitting dodo of its age.
     水龙兽成了那个时代的渡渡鸟
133. A combination of predators and competition
     捕食者和竞争者的到来

来自《我们星球上的生命 第一季 第四集 Life on Our Planet S01E04 冷血动物》第 130 行