Researchers recently discovered a slew of ancient virus remnants hiding in the 2,500 human DNA samples they studied.
Our DNA holds a great deal of essential components, but it also contains a lot of leftovers from long ago.
Among them are remnants of ancient viruses, and researchers from the University of Michigan and Tufts University recently discovered a slew of them among 2,500 DNA samples studied.
Particularly noteworthy is one that was found still in its full form.
In general, these sort of hand-me-down agents are quite common and technically called human endogenous retroviruses.
Some have active qualities, but not always in a damaging way.
One, for example, has come to serve a protective func
