
Viruses give us infections from the common cold to COVID-19 and AIDS. But research shows that they may also have played a key role in shaping the evolution of Homo sapiens. Coronavirus, Zika, Ebola, flu, even the boring old common cold we’re all familiar with the viruses that plague humanity. But while we know they make us sick, it may be surprising to discover that, over millions of years, we’ve managed to harness and domesticate these crafty invaders.