why are yawns contagious?!


Question:

Answers:
Not really sure---but just seeing the word yawn made me yawn--Thanks alot---yawns again---wonders about yawns--yawns again-- http://en.wikipedia.org/wiki/Yawn Why are yawns contagious? Getting kind of tired-- http://www.straightdope.com/classics/a2_309.html-- Why do we yawn? http://faculty.washington.edu/chudler/yawning.html A yawn reasearcher? http://psychology.drexel.edu/ECNL/ Huh? Sorry must be groggy--Pictures of animals yawning --Oh No-- yawning out of control-- http://www.animalyawns.com/ all this reading about yawning ---YAWNS deeply--- I'm getting so sleepy --- It's hard to keep my eyes open--z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z

Other Answers:
because, people tend to do what they see

I know! I don't really know... maybe it's monkey see, monkey do
Answers:

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