In this week’s science show Beth talks with genome biologist Ed Chuong of CU Boulder’s innovation incubator, the Biofrontiers Institute. Ed takes us for a whirlwind tour of the evolutionary history of these viral invaders of our genome, and some examples of how they can simultaneously be friend and foe. Teaser, did you realize that the genes that allow the formation of the placenta, the organ that nourishes human (and other mammal) fetuses, came from viruses!

Executive Producer: Joel Parker

Listen to the show: