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Are Cats More Expressive Than We Think?

Are Cats More Expressive Than We Think?

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2:51
Are Cats As Easy to Train as Dogs?

Are Cats As Easy to Train as Dogs?

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2:19
Can Sleep Quality and Quantity be Boosted Using Sound?

Can Sleep Quality and Quantity be Boosted Using Sound?

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3:03
How Sleep Helps Children Learn and Remember New Words

How Sleep Helps Children Learn and Remember New Words

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4:22
What We Know and Don’t Know about the Coronavirus

What We Know and Don’t Know about the Coronavirus

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5:55
How Coronavirus Tests Work

How Coronavirus Tests Work

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6:46
How the Immune System Fights Cancer

How the Immune System Fights Cancer

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2:49
An American Cancer Patient Receives Treatment in Cuba

An American Cancer Patient Receives Treatment in Cuba

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4:51
How Do Sumo Wrestlers Avoid Obesity-Related Diseases?

How Do Sumo Wrestlers Avoid Obesity-Related Diseases?

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2:51
How the Hormone Leptin Helps Regulate Appetite

How the Hormone Leptin Helps Regulate Appetite

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6:48
Can Scientists Use RNA to Create a Coronavirus Vaccine?

Can Scientists Use RNA to Create a Coronavirus Vaccine?

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5:28
When You Lose a Loved One to Coronavirus

When You Lose a Loved One to Coronavirus

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6:36
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NOVA

Can Bones Reveal How Dogs Evolved from Wolves?

A researcher uncovers 30,000-year-old skulls from Europe, which appear to be halfway between those of wolves and domestic canines. But do the skulls actually belong to the ancestors of today's dogs?
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Ancient Earth: Life Rising
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53:47
Season 50 Episode 13
Ancient Earth: Life Rising
See how life made the leap to land, turning a barren landscape into a lush, green world.
Ancient Earth: Frozen
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53:46
Season 50 Episode 12
Ancient Earth: Frozen
How did life survive on a planet covered in ice from pole to pole?
Ancient Earth: Birth of the Sky
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53:47
Season 50 Episode 11
Ancient Earth: Birth of the Sky
See how Earth transformed from a barren hellscape to a planet capable of sustaining life.
Your Brain: Who's in Control?
53:20
Season 50 Episode 10
Your Brain: Who's in Control?
Dive into the subconscious to see what’s really driving the decisions you make.
Your Brain: Perception Deception
53:30
Season 50 Episode 9
Your Brain: Perception Deception
Neuroscientists discover the tricks and shortcuts the brain takes to help us survive.
Hidden Volcano Abyss
53:19
Season 50 Episode 8
Hidden Volcano Abyss
Investigate one of the most powerful volcanic eruptions in recorded history.
Saving the Right Whale
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53:31
Season 50 Episode 7
Saving the Right Whale
Follow scientists determined to save the critically endangered right whale.
Chasing Carbon Zero
53:31
Season 50 Episode 6
Chasing Carbon Zero
Here’s how the U.S. could reach net-zero carbon emissions by 2050.
Weathering the Future
53:31
Season 50 Episode 5
Weathering the Future
Americans use ancient wisdom and new technology to fight extreme weather.
Nazca Desert Mystery
53:31
Season 49 Episode 17
Nazca Desert Mystery
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.
Rebuilding Notre Dame
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53:43
Season 49 Episode 13
Rebuilding Notre Dame
A team tackles the restoration of iconic Notre Dame Cathedral.
Ice Age Footprints
53:43
Season 49 Episode 9
Ice Age Footprints
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.
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