And it's still just as important today. 这在今天依然非常重要
forests had regrown and carpeted much of the land. 森林已重新生长并覆盖大部分陆地
...they'd grown bigger and more dangerous. 它们变得越来越大 越来越危险
In contrast, the cold-blooded iguanas are slow and sluggish... 相比之下 冷血的海鬣蜥动作迟缓
and one of the most streamlined bodies of any animal, 以及动物中最流线型的身体