Even though only 3-4% of people have a phobia of seeing blood, about 15% of people will faint at the sight. Learn why in this classic episode of BrainStuff.
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How Does Butter Get Its Texture, Flavor, and Color?
14:02

Why Do We Call Dibs and Shotgun, and Who Was the Real McCoy?
09:22

Why Is Siberia's Batagaika Crater Known as the Doorway to Hell?
10:56