- And in early South America, 46 million years after the asteroid,
在早期的南美 小行星撞击的4600万年后 - ground-dwelling birds had the space
居住在地上的鸟类有了空间 - to evolve into the deadliest predator since Tyrannosaurus rex.
进化成了 自霸王龙以来最致命的捕食者 - Stalking among the glades of palms...
它们在棕榈林地中潜伏 - ...it has inherited the most aggressive traits from its ancient bloodline.
继承了 来自古老血脉的最具侵略性的特征 - In the clearing, a herd of early mammals graze.
空地上 一群早期哺乳动物在吃草 - Theosodon,
滑距貘