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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

How Ocean Currents Work (and How We Are Breaking Them)

Season 9 Episode 5

Ocean currents are our planet’s circulatory system, and they keep everything from ecosystems to the climate healthy. But we’re changing Earth in ways that threaten to disrupt and even break critical ocean currents like the planet-wide Great Ocean Conveyor. We explain how ocean currents work, how climate change is threatening to disrupt them, and what we can do to stop that from happening.

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Our animal brains deal with quantities in very specific, and fascinating, ways.
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These tiny pieces of an ancient asteroid could hold the secret to the origin of life.
Maybe We've Already Made First Contact…
10:28
What do scientists think are the best ways of reaching out to aliens?
I Don’t Know How to Feel About 2023
9:40
How bad is climate change in 2023? Can we do anything about it?
How Scientists Made the Hottest Thing Ever
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A cosmic soup hadn’t existed in 13.8 billion years. Now, scientists cook it up in a lab.
Can a Billion Oysters Save New York City?
12:56
After a century of industrial pollution and superstorms, New York's waterways needs help!
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