That Time Oxygen Almost Killed Everything

Season 1 Episode 7 | 4m 45s Video has closed captioning.

What if we told you that there was a time when oxygen almost wiped out all life on Earth? 3 billion years ago, when the world was a place you’d never recognize, too much of a good thing almost ruined everything for everybody.

Aired: 08/07/17

Rating: NR


Problems Playing Video? | Closed Captioning