Get extended access to 1600+ episodes, binge watch your favorite shows, and stream anytime - online or in the PBS app.
Already a GBH member?
You may have an unactivated GBH Passport member benefit. Check to see.
Season 1 Episode 45 | 7m 29s | Video has closed captioning.
There are fossils of viruses, of sorts, preserved in the DNA of the hosts that they’ve infected. Including you. This molecular fossil trail can help us understand where viruses came from, how they evolved and it can even help us tackle the biggest question of all: Are viruses alive?
Aired: 06/27/18
Preview: EONS
Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth. From the dawn of life in the Archaean Eon through the Mesozoic Era — the so-called “Age of Dinosaurs” -- right up to the end of the most recent Ice Age.
Explore Eons Now!
