yes, it's one of the reasons they articulate and constantly wet their nostrils. http://chemse.oxfordjournals.org/content/30/4/291.full http://chemse.oxfordjour

yes, it's one of the reasons they articulate and constantly wet their nostrils. http://chemse.oxfordjournals.org/content/30/4/291.full http://chemse.oxfordjournals.org/content/30/4/291.full