Scientific American Frontiers: Spider Canyon: A 30-year study of funnel web spiders in Arizona reveals an interesting theory about hybridization. Frozen Alive: Natural antifreeze in deep sea fish may help prolong donated organs. Ultimate Speed: Scientists study the biomechanics of the two fastest land animals, the cheetah and the pronghorn antelope. Hidden Depths: Explorations in the middle depths of the ocean off Monterey, California, turn up spectacular new life forms. High Anxiety: Can a new test identify who might succumb to mountain sickness?

Starring:

Alan Alda

Genre: