Scientists create stem cells that are safer to use in research.
A new date for an old fossil hints that Homo erectus was resilient in colder climates.
Biologists have learned that childhood abuse can leave a lasting mark on brain function.
Brain scans are showing how humans handle language.
Gene copying mistakes may have prodded the evolution of gorillas, chimps, and humans.
The germs that live inside us have evolved with us -- and tell a story of early human migrations.
Can you both learn something new and recall something old at the same moment?
A fresh look at the human fossils on Flores Island hints at their evolutionary history.
Biologists learn why some HIV-positive people stay healthy for decades.
Stone Age "family values" reached to the afterlife.