Some, like Diplodocus, have grown to become 25 meters long. 有一些恐龙 比如梁龙 长到25米长
giving us many of the animals we still have today... 为我们带来许多今天仍然存在的动物
They have a much more efficient breathing system 它们拥有一种更高效的呼吸系统
have been one of nature's greatest spectacles for millions of years. 这样的聚集 一直是自然界最壮丽的奇观之一
...reptiles have had to adapt to an ever more crowded world. 爬行动物 不得不适应一个越来越拥挤的世界
They have no defense against this new type of reptile... 面对这种新型爬行动物 它们毫无办法
some reptiles have grown to epic proportions. 一些爬行动物长得异常巨大