Why Do We Have Different Blood Types? | COLOSSAL QUESTIONS

We’ve all got gallons of blood flowing through our veins, but not necessarily the same type of blood! So... why do people have different blood types??

Welcome to COLOSSAL QUESTIONS, the show that answers all of life's most pressing questions!

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Narrated by: Matt Schneck
Written & Directed by: Matt Levy
Edited & Animated by: Anton Makarau
Executive Producer: Judy Meyers

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