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Alan Alda visits dozens of scientists on three continents -- and even undergoes an examination of his own brain -- to find the answer to one question: What makes us human?

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The Human Spark
Full episodes
7 VIDEOS

Brain Matters
54:12 Air Date 01/20/10

So Human, So Chimp
54:42 Air Date 01/12/10

Becoming Us
54:41 Air Date 01/06/10

Links in the Evolutionary Chain
4:29 Air Date 01/01/10

Alan Alda and Man's Best Friend
5:11 Air Date 12/15/09

Monkeys and Magic Fruit
5:00 Air Date 12/15/09

Running = Big Brains?
3:55 Air Date 12/15/09
Shorts
10 VIDEOS

A Matter of Size
3:03 Air Date 01/01/10

Beyond the Present
0:52 Air Date 01/01/10

Cooperation
0:19 Air Date 01/01/10

Human Language
1:35 Air Date 01/01/10

Human Nature
4:45 Air Date 01/01/10

If It Ain't Broke...
1:24 Air Date 01/01/10

Insight and Imagination
2:15 Air Date 01/01/10

Scanning the Brain
6:50 Air Date 01/01/10

The Brain in Action
6:50 Air Date 01/01/10

To Make A Spear
4:32 Air Date 01/01/10