在澳大利亚那一片国土上生活着近百万种动物，其中包括世界上80%的哺乳动物及90%的爬行动物。
Australia is home to nearly one million animal species, including 80 percent of the world's mammals and 90 percent of its reptiles.
而眼前这条圆滑、机敏而又警觉的爬行动物叫做眼镜王蛇——世界上最大的毒蛇。 它也是包括作者在内的蛇类发烧友的偶像。
This sleek, agile and very alert snake was a king cobra, the largest venomous snake in the world and an icon to all snake enthusiasts, including this writer.
而更大规模的灭绝发生在25100万年前二叠纪末期，致使世界上70%的陆地脊椎动物(和96%的海洋动物)死亡，同时造就了爬行动物的时代。
A bigger mass extinction, at the end of the Permian period 251m years ago, killed 70% of the world's land vertebrates (and 96% of all Marine animals) and paved the way for the age of reptiles.
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