Human biology

The unprecedented pace of scientific progress on Covid-19 builds on groundbreaking discoveries from the past.
Nala Rogers, Staff Writer
Traditional microscopes make it look like sperm tails undulate symmetrically -- but that's an optical illusion.
Nala Rogers, Staff Writer
Researchers found a "ghost population" that interbred with the ancestors of modern humans.
Charles Q. Choi, Contributor
New study of hearts from apes and humans shows that people need to be active to have healthy hearts.
Chris Gorski, Editor
Nearly complete skull of Australopithecus anamensis found in Ethiopia.
Charles Q. Choi, Contributor
A tiny device has potential to have a big impact on millions suffering breathing problems.
Karin Heineman, Executive Producer
Mixtures of chemical pollutants may harm people and wildlife, even when each chemical is below its regulatory threshold.
Nala Rogers, Staff Writer
A study that compares the multitasking abilities of awake sleepwalkers and non-sleepwalkers provides insights into the nature of awareness.
Peter Gwynne, Contributor
These real medical conditions carry uncanny echoes of our monster legends.
Abigail Malate, Staff Illustrator
How an early bird grandmother helped prove that Nobel Prize-winning fruit fly research matters for human health.
Nala Rogers, Staff Writer
French researchers find that individuals can learn new information fed to them during certain phases of sleep.
Peter Gwynne, Contributor
Human fetuses turn toward face-like patterns of light projected through their mothers' abdomens.
Nala Rogers, Staff Writer