Its large eyes allow it to see exceptionally well in the dark. 它的大眼睛 使它能够在黑暗中看得非常清晰
It owes its success to the deep ocean's unchanging nature. 它的成功要归功于深海的稳定性
At its peak, almost half the world was covered in ice, 巅峰时期 世界上将近一半区域被冰覆盖
Twenty million years later, life faced one of its greatest challenges... 2000万年后 生命面临又一个巨大的挑战
With the coast clear, the trilobite continues on its merry way once more. 威胁消除之后 三叶虫继续踏上快乐的旅程
because when cornered, the trilobite's armor comes into its own. 因为当被逼入绝境时 三叶虫的护甲就开始发挥作用
its name translates as "the abnormal shrimp." 顾名思义 它名字的含义就是“奇怪的虾”
And its breakthrough adaptation, armor. 它的突破性适应特征就是护甲
its prey is anchored to the seafloor 它的猎物根植于海底