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.
The wildfires that recur in southern Australia are predicted to worsen as the globe warms.
Gene copying mistakes may have prodded the evolution of gorillas, chimps, and humans.
The remains of the world's largest snake tell a story of the ancient tropics.
The germs that live inside us have evolved with us -- and tell a story of early human migrations.
Light reflected off cars, buildings, and roads can derail wildlife.
Can you both learn something new and recall something old at the same moment?