中生代是由恐龙主宰的世界，尽管哺乳动物也在距今2亿年前的化石记录中出现。
The Mesozoic saw the ascendence of dinosaurs, although mammals also appear in the fossil record about 200 million years ago.
在过去的200年前，这个国家中灭绝的哺乳动物物种比世界上的其他任何地方都要多。
More mammals have become extinct in that country over the last 200 years than in any other place in the world.
看见世界上最危险的哺乳动物之一近在眼前肯定极其兴奋。
To see one of the world’s most dangerous mammal at close must be exciting.
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