Welcome to Iowa Public Television! If you are seeing this message, you are using a browser that does not support web standards. This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device. Read more on our technical tips page.

Iowa Public Television

<p><strong>Note:</strong> If this video does not play, you may need to download the free <a href="http://www.macromedia.com/go/getflashplayer">Flash</a> video plugin for your web browser.</p> <p><a href="http://www.macromedia.com/go/getflashplayer" target="_blank"><img alt="Get Adobe Flash Player" src="graphics/plugins/get_flash_player.gif" border="0" height="31" width="88"></a></p>

The Human Spark | Monkeys and Magic Fruit | PBS

Duration: 05:01

Researcher Laurie Santos demonstrates an illusion test she runs on free-ranging monkeys in Puerto Rico. Seeing how the monkeys respond opens a window onto the evolution of our own cognitive abilities and helps isolate the beginnings of the human spark. In The Human Spark, 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? Coming to PBS over three Wednesdays ...



Post Date: December 2, 2009