恐龙在地球上出现之前绿海龟于就已在古生代出现；在最后一个冰河 时期绿海龟也幸存下来；但它们与我们在一起的日子可能不多了。
There were green turtles in our seas e ons before dinosaurs tramped the Earth; they survived the last ice age; but they may not be with us much longer.
至少这个日子标志着玛雅法历的终结，预示着地球将经历巨变。
At the least, that date represents the end of the Mayan calender, when the earth is forecast to go through major changes.
在一个晴朗的日子里。。。 NASA展现了地球迷人的“蓝宝石”画面。
On a clear day.... Nasa reveals mesmerising 'blue marble' images of Earth
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