When a story about the human appendix not being "useless after all" hit the press and blogosphere a month ago, quite a few science blogs explained that this "new" functionality idea was flawed and carefully pointed out the problems with the research, in the midst of what was largely unabashedly uncritical enthusiasm. The writers noted that this was not new research, just a review of the literature. More importantly, the Duke authors' proposal in the Journal of Theoretical Biology that the appendix was not vestigial but served to house beneficial gut bacterial was unproven (though some deemed it interesting).
Despite the effort, I noticed that Answers.com featured the appendix story in "Today's Highlights", and alas it wasn't listed as "fake news".
