Nuclear polyhedrosis viral infection is one factor these disparate species share.
核多角体病毒感染是这些不同物种共有的一个因素。
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So really the nuclear DNA does not help us decide if Denisovans are a new species, though the evidence for interbreeding with modern humans suggests they are not.
Scientists have observed that other species show signs of troubling genetic changes, evidence of the continuing long-term aftermath of what is still seen as the world's worst nuclear disaster.