Up Next

Artificial Intelligence is Helping Get the Lead Out of Flint

Artificial Intelligence is Helping Get the Lead Out of Flint

Artificial Intelligence is Helping Get the Lead Out of Flint

Video

6:32

Are Babies Capable of Making Moral Judgements?

Are Babies Capable of Making Moral Judgements?

Are Babies Capable of Making Moral Judgements?

Video

3:36

Taking Orders to Be Violent Might be Easier Than You Think

Taking Orders to Be Violent Might be Easier Than You Think

Taking Orders to Be Violent Might be Easier Than You Think

Video

5:17

Has Violence Declined Through the Ages?

Has Violence Declined Through the Ages?

Has Violence Declined Through the Ages?

Video

2:13

Using Drones to Solve 170-Year Bowhead Whale Mystery

Using Drones to Solve 170-Year Bowhead Whale Mystery

Using Drones to Solve 170-Year Bowhead Whale Mystery

Video

3:00

This Little Armadillo Was a Big Ambassador for His Species

This Little Armadillo Was a Big Ambassador for His Species

This Little Armadillo Was a Big Ambassador for His Species

Video

3:51

Why Trees Are Living Climate Records

Why Trees Are Living Climate Records

Why Trees Are Living Climate Records

Video

1:29

Plant Fossils Hint at Arctic's Swampy Past

Plant Fossils Hint at Arctic's Swampy Past

Plant Fossils Hint at Arctic's Swampy Past

Video

3:02

What did the East Coast Look Like 3 Million Years Ago?

What did the East Coast Look Like 3 Million Years Ago?

What did the East Coast Look Like 3 Million Years Ago?

Video

3:21

This Canadian Cave Has Been Frozen Since the Last Ice Age

This Canadian Cave Has Been Frozen Since the Last Ice Age

This Canadian Cave Has Been Frozen Since the Last Ice Age

Video

3:11

Fifty Million Years Ago, the Arctic Was a Warm Swamp

Fifty Million Years Ago, the Arctic Was a Warm Swamp

Fifty Million Years Ago, the Arctic Was a Warm Swamp

Video

2:07

A Bird's-Eye View of Carbon Emissions

A Bird's-Eye View of Carbon Emissions

A Bird's-Eye View of Carbon Emissions

Video

1:56

Back to Show

NOVA

How did Leonardo da Vinci Paint the "Mona Lisa"?

To master Mona Lisa's form, da Vinci carefully studied the human eye and mouth—and he dissected at least 30 human bodies.