And did you bother to read the open-access research paper the article discusses?

http://advances.sciencemag.org/content/3/8/e1603322

No, of course you didn't. Because that would have answered your questions, and more, and because you didn't actually care.

Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. Additional data related to this paper may be requested from the authors.