Best Video/Why do we have two nostrils? (Why Do We Have Two Nostrils?)

{{Application:Wikilook Blog/Article
 * blog=Best Video
 * module=Article
 * author=Gaijin
 * publishingtimestamp=2012/11/15 10:00
 * title=Why do we have two nostrils? (Why Do We Have Two Nostrils?)
 * categories=Science
 * leading=Why do we have two nostrils?.
 * text={{ Widget YouTube Advanced | id = eiAx2kqmUpQ | width = 560 | height = 315 | language = en_US }}