Virus found to adapt through newly discovered path of evolution

Bucking a central tenet of biology, researchers at the University of California San Diego and their colleagues have discovered evidence for a new path of evolution, and with it a deeper understanding of how quickly organisms such as viruses can adapt to their environment. Describing their findings in the March 30 issue of the journal Science, UC San Diego biologists conducted a series of experiments with a bacterial virus and found that it could infect "normal" hosts, as expected, but also -- t