Here's a link to the paper: http://www.nature.com/nature/journal/v542/n7641/full/nature21369.html http://www.nature.com/nature/journal/v542/n7641/full/nature2..

Here's a link to the paper: http://www.nature.com/nature/journal/v542/n7641/full/nature21369.html http://www.nature.com/nature/journal/v542/n7641/full/nature2... http://www.nature.com/nature/journal/v542/n7641/pdf/nature21369.pdf http://www.nature.com/nature/journal/v542/n7641/pdf/nature21... And the IBIS Network who drove the study: http://www.ibis-network.org/ http://www.ibis-network.org/