The replica of a neanderthall skull in the new Neanderthal Museum in the northern Croatian town of Krapina February 25, 2010.  A mysterious giant virus buried for 30,000 years in Siberian permafrost ... more 
The replica of a neanderthall skull in the new Neanderthal Museum in the northern Croatian town of Krapina February 25, 2010.  A mysterious giant virus buried for 30,000 years in Siberian permafrost has been resurrected. The new discovery raises the possibility that as the climate warms and exploration expands in long-untouched regions of Siberia, humans could release ancient or eradicated viruses. These could include Neanderthal viruses or even smallpox that have lain dormant in the ice for thousands of years. less 
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Reuters | Photo By REUTERS/Nikola Solic
Tue, Mar 4, 2014 6:00 AM EST