- They form a defensive wall.
它们排成防守墙 - Even the world's greatest predator knows when she's beaten.
哪怕世界上最强大的捕食者 也知道什么时候该认输 - Unlike the young male.
雄性幼龙就有点不知进退了 - Dinosaurs might still rule today
如果地球的条件保持不变 - if conditions on Earth had remained the same.
今天恐龙可能仍在统治世界 - But everything was about to change,
但一切都将改变 - and in just one day.
一天之内 天翻地覆