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Crash Course
The Evolutionary Epic Crash Course Big History 5
In which John Green, Hank Green, and Emily Graslie teach you about evolution. So, in the last 3.8 billion years, life on Earth has evolved from single-celled prokaryotes to the dizzying array of life we have today. So how did all this...
Crash Course
Why the Evolutionary Epic Matters: Crash Course Big History
Today we're talking about evolution_basically the history of all life on Earth. The thing is, why are we talking about this. Well, the story of life, all the way back to single celled microbes billions of years ago, is all part of our...
Crash Course
The Evolutionary Epic: Crash Course Big History
In which John Green, Hank Green, and Emily Graslie teach you about evolution. So, in the last 3.8 billion years, life on Earth has evolved from single-celled prokaryotes to the dizzying array of life we have today. So how did all this...
Crash Course
Crash Course Big History #5: The Evolutionary Epic
In the last 3.8 billion years, life on Earth has evolved from single-celled prokaryotes to an array of life we have today. Find out about about Darwin, evolution, and natural selection. [15:05]