人类患者和小鼠模型所得到的结果差异似乎来源于物种差异。
This discrepancy is most likely due to a species difference between humans and mice.
在不引起可见的明显的症状的情况下，朊蛋白进入了人类的食物链，它可以跨过物种差异感染人类。
The prion entered the human food chain without evident symptoms being observed - the pathogen was able to jump the species gap to humans.
关于物种差异产生的共同祖先猴子及人类吗？如果你看到这个，你必须了解一些关于地球上生命的精彩。
What about the species that diverged to give rise to the common ancestor of monkeys and humans? If you see where this is leading, you'll have understood something rather wonderful about life on earth.
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