What Happened Before History? Human Origins
9:09
When Time Became History - The Human Era
9:41
The Origin of Consciousness – How Unaware Things Became Aware
14:42
We Have To Talk About Weed
15:41
Life And Death 3,000,000 Years Ago
10:29
Are There Lost Alien Civilizations in Our Past?
9:45
What Is Intelligence? Where Does it Begin?
12:49
Human Evolution: We Didn't Evolve From Chimps: Crash Course Biology #19
17:55