Contents

19 May 2017
Vol 356, Issue 6339

About The Cover

Cover image expansion

COVER In an extreme example of humans' migratory urge, many scientists study and work in multiple countries. The cover depicts the journeys of individual scientists over the course of their careers, as reconstructed from data in ORCID; the blue path represents the trajectory of Rimantas Kodzius, who may be the most migratory living scientist. See special section on human migration, pages 676 and 694. For more on the process behind the cover image, see http://scim.ag/2rcNT8F.
Data analysis: John Bohannon and Jia You/Science; Visualization: Valerie Altounian/Science