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

Actor:

Woodie Flowers, Alan Alda

Quality:

HD

Status:

Ended

First Air:

1990

IMDb:

9.0