Scientific American Frontiers

Season 11 Episode 5: Life's Little Questions II

Why can't you tickle yourself? Is laughter uniquely human? These little questions might have some big answers.

Genre:

Documentary

Seasons:

15

Episodes:

96

Cast:

Woodie Flowers, Alan Alda

Quality:

HD

Duration:

60 min

First Air:

1990

Rating:

9.0