A Timeline of Life on Earth: 4 Billion Years of History

Have you ever wondered how we got here on Earth, and how it all began? From the Archean Eon to the Holocene Epoch, some pretty amazing stuff has happened. Check out this SciShow mini-series hosted by Stefan Chin for a glimpse into prehistoric life on earth, all the way through our advancements today!

For the full series of life on earth visit: https://www.youtube.com/eons

Part 1 - Survival is Hard: 0:41
Part 2 - When Life Exploded: 9:34
Part 3 - Dinosaur Time!: 19:46
Part 4 - Rise of the Humans: 28:14
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