Long ago, some of the viruses that didn't kill us got absorbed into our genes and sit there to this day. Most are silent fossils. But some work with our bodies to make us better, stronger.
It's wild stuff. And it's not science fiction.
This hour, On Point: The new science of paleovirology and the long evolutionary embrace of man and virus.Guests:
Michael Specter, staff writer for the New Yorker. His story in this week's issue is titled "Darwin's Surprize."
John Coffin, Professor of Molecular Biology and Microbiology at Tufts University.
This program aired on November 28, 2007.