Dog/Human Contagion!

Nothing quite so exciting as a virus, but what’s more infectious than a yawn? Apparently, not only do humans yawn in response to a yawn, but so do other primates and dogs!

It made me giggle a bit.

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1 Response to “Dog/Human Contagion!”



  1. 1 Bookmarks about Contagion Trackback on December 12, 2008 at 5:30 am

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