until they are big enough to join the rest of the herd. 直到它们长大到足以加入龙群
They were to rule for over 150 million years. 它们将统治超过1.5亿年
But they spawned another dynasty with no such binds. 但它们催生出了 另一个不受这种束缚的王朝
And yet, they are just 1% of all species that have ever existed. 但这只是曾经存在过的物种中的1%
They lay down markers for a new human adventure... 它们为人类新的探索留下了
But they testify to a new awareness. 但却表明了新的认识
They have already created over two and a half million jobs. 他们为此创造了超过两百五十万份工作