Where To Stream Through the Wormhole Season 4 Episode 2
When Does Life Begin?
- Aired June 5, 2013
- 60 Min
- Rated 6.5
- Number 36 Of 62 Rated Episodes
We can all trace our lives back to a beginning. But what defines the beginning? Is it the moment when two cells unite? Or does something have to know it is alive before its life can begin?