The biologists Rosemary and Peter Grant have spent four decades on a tiny island in the Galápagos. Their discoveries reveal how new animal species can emerge in just a few generations.
Gene drives promise to spread a trait across an entire population. But evolutionary forces are going to alter even the best-engineered plans.
Scientists have developed new ways to forecast who will bounce back from disease by studying not just the way the immune system fights infections, but how the body repairs itself.
Irrationality may be a consequence of the brain’s ravenous energy needs.
The subtle mechanics of densely packed cells may help explain why some cancerous tumors stay put while others break off and spread through the body.
The bulk of biological research is centered on a handful of species. Are we missing a huge chunk of interesting biology?
Scientists are exploring a mysterious pattern, found in birds’ eyes, boxes of marbles and other surprising places, that is neither regular nor random.
Researchers are racing to understand how the Zika virus causes birth defects. Their first results have revealed tantalizing clues about how the virus interferes with the developing brain — and how it might be stopped.
The neuroscientist Sheena Josselyn can evoke and erase memories in mice using new tools that precisely control the brain.
Scientists have figured out how microbes can suck energy from rocks. Such lifeforms might be more widespread than anyone anticipated.