Link to the Nature article if you'd like a bit more information http://www.nature.com/news/2008/080730/full/454561a.html http://www.nature.com/news/2008/080730/

Link to the Nature article if you'd like a bit more information http://www.nature.com/news/2008/080730/full/454561a.html http://www.nature.com/news/2008/080730/full/454561a.html . The video (linked at the bottom of the article) is pretty good.