After 150 million years of dinosaur rule, 经过1.5亿年的恐龙统治
for more than a hundred million years. 哺乳动物获得了非凡的防御能力
Spiders had been around for over 100 million years... 当时蜘蛛已经存在超过一亿年
This new dynasty would rule for more than 150 million years. 这个新王朝将统治超过1.5亿年
The waterways soon covered more than 1.6 million square kilometers... 水道很快覆盖超过160万平方公里