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Ancient virus could determine sex of a baby: Study

The sex of human and all mammalian babies may be determined by a simple modification of a virus that insinuated itself into the mammalian genome 1.5 million years ago, the study said.

30,000-year-old giant virus comes back to life in French lab

A large ancient virus that lied dormant in the Siberian permafrost for at least 30,000 years has sprung back to life after French scientists revived it in the laboratory.