Randy Rieland ("The Code Breakers") is a writer based in Washington, D.C. He has written for Johns Hopkins Magazine about the impact of the anti-vaxxers movement and the science of tracking mass human migrations.
Michael Thomas ("Catch Him If You Can," photography) is a freelance photojournalist based in St. Louis. He finds enjoyment in connecting with people and telling the unique stories of life.
On the cover
Illustrator Davide Bonazzi eschewed the classic depiction of DNA strands for this issue's cover, opting instead for a more conceptual treatment of guanine, adenine, thymine, and cytosine, the building blocks of DNA. This produce-centric cover accompanies "The Code Breakers," in which computer science Professor Michael Schatz describes using gene sequencing technology to decode 100 varieties of tomatoes in 100 days—and explains how that software can help with all manner of biological interventions.