Two detectives join forces to find a serial killer with a personal agenda.
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Season 3 Premiered May 2010
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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?
Major funding for THE HUMAN SPARK is provided by the National Science Foundation, and by the Alfred P. Sloan Foundation. Additional funding is provided by the John Templeton Foundation, the Cheryl and Philip Milstein Family, and The Winston Foundation.
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The Human Spark
A Matter of Size
A look at the brains of a rat, monkey, chimp and human.
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Beyond the Present
A look at humans' unique ability to reflect upon events.
A brief look at the cooperative and social nature of humans.
A look at the difference between human language and others.
A look at the ways in which monkeys and apes are similar to humans.
If It Ain't Broke...
Archaeologist John Shea explains early humans' first tools.
Insight and Imagination
An overview of how insight and imagination distinguish humans from others.
Scanning the Brain
An introduction to MRI scans.
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