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Why Are We Warm-Blooded?

Why Are We Warm-Blooded?

Season 9 Episode 6
11:18
A Brief (Scientific) History of Butts

A Brief (Scientific) History of Butts

Season 9 Episode 8
12:27
Why Is Sex a Thing?

Why Is Sex a Thing?

Season 9 Episode 9
12:31
How Much Of You Is Alive?

How Much Of You Is Alive?

Season 9 Episode 10
12:05
How the Zebra Really Got Its Stripes?

How the Zebra Really Got Its Stripes?

Season 9 Episode 11
13:13
What Is Nothing?

What Is Nothing?

Season 9 Episode 15
14:06
Why Do We Dream?

Why Do We Dream?

Season 9 Episode 16
14:29
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It's Okay to Be Smart

The Transcontinental Burrito Hypertunnel

Season 9 Episode 4

The finest burritos in the world are made in San Francisco’s Mission District. But how can you get a hot & fresh one in New York City in time for lunch? Physics, that’s how. For this very serious and scientific video, we dug a classic documentary out of the vault that tells the story of the transcontinental burrito tunnel, and its successor, the transcontinental burrito hypertunnel.

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Season
The Scientific Lie That Damaged Generations of Men
20:05
Here is the REAL science about "alpha males."
Inside the Vault Where They Keep the Dinosaur Apocalypse
22:36
How did the mass extinction of the dinosaurs play out, moment by moment?
(Almost) Everything You Learned About Genetics Is Wrong
12:37
Think traits like eye color or tongue-rolling are simple genetics? Think again.
Mars Used to Be Blue... Then Something Happened
11:08
Why is the Martian sky red by day… but blue at sunset?
Be Smart about Autism
36:47
Is autism really on the rise—or are we just recognizing it more?
Why Seedless Fruit Is a Disaster Waiting To Happen
14:51
Seedless fruits are delicious, convenient… and completely unnatural.
The Randomness Crisis Threatening the Internet
21:13
What does randomness really mean? And why your digital life depend on it?
Blood Types Are Weirder Than You Think
16:20
Why do we have different blood types? And why do we have blood at all?
How Feathered Dinosaurs Accidentally Invented Flight
16:18
How did dinosaurs become birds—and what good is half a wing?
What Could We See with a Planet-Sized Telescope?
16:00
Just how big would a telescope need to be to actually see an alien world in detail?
The Argument for De-Extinction: Explained
26:19
Dire wolves are back—sort of.
Will Earth Run Out of Oxygen
16:53
The key enzyme behind photosynthesis isn’t actually all that great at its job.
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