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S1 Ep45 | 7m 29s | Where did viruses come from and how did they evolve? Are viruses alive? (7m 29s)
What Was the Ancestor of Everything?
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S1 Ep37 | 11m 6s | The search for our origins go back to a single common ancestor. (11m 6s)
The Other Explosion You Should Know About
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S1 Ep32 | 6m 25s | The Sudden burst of diversity that marked the dawn of truly complex life on our planet. (6m 25s)
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S1 Ep31 | 5m 39s | Follow the early history of how (and why) sex became a thing. (5m 39s)
How Two Microbes Changed History
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S1 Ep25 | 7m 39s | More than two billion years ago, a tiny living thing started to live inside another thing. (7m 39s)
The Search for the Earliest Life
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S1 Ep20 | 5m 37s | Even in a hellish environment, life found a way. (5m 37s)
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S1 Ep15 | 5m 37s | But imagine a time when the Earth looked a little … purple. (5m 37s)
That Time Oxygen Almost Killed Everything
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S1 Ep7 | 4m 45s | What if we told you that there was a time when oxygen almost wiped out all life on Earth? (4m 45s)
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