Laughing?

[silentbear1283]

Alright my girlfriend asked me this weekend why do people laugh when they get tickled? Does anyone have any info since I ended up feeling like an ass and not being able to answer her question.

[Number]

Cecil tackled the question in a 1983 column, but the short answer is that nobody knows.

[ccwaterback]

Even chimps do it

http://www.pri.kyoto-u.ac.jp/ai/essay/8_laught.htm

[friedo]

My dog’s feet are ticklish. It really annoys him.