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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
Here's What I Learned…

Here's What I Learned…

Season 9 Episode 18
16:20
The Unbelievable Science of How We Read

The Unbelievable Science of How We Read

Season 9 Episode 20
16:14
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It's Okay to Be Smart

A Brief (Scientific) History of Butts

Season 9 Episode 8

Hold on to your butts. This episode is about… butts. The science and evolutionary history of your rear end, the down-low on your derriere, shining a little light where the sun don't shine… you get the picture. But(t) seriously, we don't talk about this all-important hole enough, and how, from an evolutionary perspective, it might be the most important orifice on your body.

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You know you’ve wondered. Do fish actually pee?
Does Someone Else Have Your Face?
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The Raisin Bran Effect
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Where do you see the Brazil Nut Effect around you?
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Eating turkey this holiday season? You’re eating a dinosaur!
What is Farthest Away?
6:08
The edge of everything might not even exist…
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7:41
The 1918 Flu outbreak killed 5% of the world's population--could it happen again?
The Largest River On Earth Is In The Sky
5:30
Scientists have discovered the largest river on Earth, and it’s in the sky above.
Where Do Teeth Come From?
6:40
Teeth are made from some biological nanotechnology that will blow your mind.
What Do Raindrops Really Look Like?
5:24
Raindrops are shaped like teardrops, right? Wrong! Let's discover rain's true shape.
Is Height Genetic?
6:07
Turns out the inheritance of height is a lot more complicated than we thought.
Will You Still Eat Raw Fish After Watching This Video?
6:33
Ever wondered why restaurants warn you about raw or undercooked seafood on their menus?
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