primitive genus of termites; mostly extinct; sometimes considered the most primitive Isoptera.
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By 35, 000 years ago the Neanderthals, a sub-species of human whose own origins were in Africa, were mostly extinct.
到35,000年前，尼安德特人这一起源于非洲的人类亚种几乎已经绝迹。
By 35,000 years ago the Neanderthals, a sub-species of human whose own origins were in Africa, were mostly extinct.
到35,000年前，尼安德特人这一起源于非洲的人类亚种几乎已经绝迹。
Biological community there is a consensus, that is no predators animals are mostly extinct, and the enemy is more powerful, the evolutionary speed is faster, stronger ability to adapt.
生物界有一个共识，那就是没有天敌的动物多半会灭绝，而敌人越强大，其进化速度则越快，适应能力也更强。
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