这些长着小龅牙的生物“帮助”澳大利亚八分之一的土著哺乳动物走向灭绝，顺道再让不计其数的植物从此消逝，最后的结果便是，澳大利亚严重的大面积水土流失。
The buck-toothed creatures helped extinguish nearly one-eighth of Australia’s native mammal species and led to the extinction of countless numbers of plants, leading to widespread soil erosion.
地球正在经历他的第六次大灭绝事件，许多物种甚至在我们认知它之前就飞速地消逝了。
Earth is experiencing its sixth mass extinction event, species winking out of existence before we even know them.
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