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

Question

None more so than the plains.
平原尤其如此
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

来自《我们星球上的生命第一季第六集 Life on Our Planet S01E06 灰烬中重生》第 259 行

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