Genes from ebola-like virus found in the human genome

The human genome contains fragments of viruses that our species tangled with in our distant evolutionary past. Now new scientific research has isolated some of the viruses that still haunt our genomes, even after millions of years of evolution. In today's Scientific American, Katherine Harmon has a great roundup of… » 7/30/10 3:00pm 7/30/10 3:00pm