Genetics Steps In to Help Tell the Story of Human Origins
Genetics Steps In to Help Tell the Story of Human Origins
Africa’s sparse fossil record alone cannot reveal our species’ evolutionary history.
Genetics Steps In to Help Tell the Story of Human Origins
Genetics Steps In to Help Tell the Story of Human Origins

Africa’s sparse fossil record alone cannot reveal our species’ evolutionary history.

Africa’s sparse fossil record alone cannot reveal our species’ evolutionary history.

Features
How Groups of Cells Cooperate to Build Organs and Organisms
How Groups of Cells Cooperate to Build Organs and Organisms
Michael Levin | Sep 1, 2020
Understanding biology’s software—the rules that enable great plasticity in how cell collectives generate reliable anatomies—is key to advancing tissue engineering and regenerative medicine.
The Peopling of South America
The Peopling of South America
Shawna Williams | Sep 1, 2020
While questions still outnumber answers, new findings from archaeology, genetics, and other disciplines are revealing surprising insights into the early cultures of the most recently populated continent.
Harnessing Stem Cell–Like T Cells to Better Fight Cancer
Harnessing Stem Cell–Like T Cells to Better Fight Cancer
Daniel E. Speiser and Werner Held | Jul 13, 2020
Better understanding the CD8+ T cells already present in tumors could be key to making immunotherapies work for more patients.
Why R0 Is Problematic for Predicting COVID-19 Spread
Why R0 Is Problematic for Predicting COVID-19 Spread
Katarina Zimmer | Jul 13, 2020
The SARS-CoV-2 pandemic has revealed the limitations of R0 as no other disease outbreak has before, at a time when policymakers need accurate forecasts.
How Social Isolation Affects the Brain
How Social Isolation Affects the Brain
Catherine Offord | Jul 13, 2020
Absence of human contact is associated with declines in cognitive function. But as the COVID-19 pandemic brings concerns about the potential harms of isolation to the fore, researchers are still hunting for concrete evidence of a causal role as well as possible mechanisms.
Counting the Lives Saved by Lockdowns—and Lost to Slow Action
Counting the Lives Saved by Lockdowns—and Lost to Slow Action
David Adam | Jul 6, 2020
Social distancing measures prevented millions of COVID-19–related deaths around the world, according to a handful of studies, but it’s hard to quantify the effects with certainty.
Left-Handed DNA Has a Biological Role Within a Dynamic Genetic Code
Left-Handed DNA Has a Biological Role Within a Dynamic Genetic Code
Rachel Brazil | Jun 1, 2020
Once considered an unimportant curiosity, Z-DNA is now recognized to provide an on-the-fly mechanism to regulate how an RNA transcript is edited.
The Infant Gut Microbiome and Probiotics that Work
The Infant Gut Microbiome and Probiotics that Work
Jennifer T. Smilowitz, Diana Hazard Taft | Jun 1, 2020
The gut microbiome is more malleable in the first two years after birth, allowing probiotics to make their mark. Can we exploit this to improve infants’ health?
Protein Synthesis Enzymes Have Evolved Additional Jobs
Protein Synthesis Enzymes Have Evolved Additional Jobs
Amber Dance | Jun 1, 2020
Aminoacyl-tRNA synthetases, which help translate the genetic code into protein, also function in angiogenesis, fat metabolism, and more.