The paper itself (Score 2)

The article is nice and National Geographic is a fine publication but it is not a scientific journal. Please, when you discuss science, link to the scientific paper itself, so people can comment on the information unfiltered and undistorted by the popular media. The paper is here: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0001780