Tuberculosis afflicted our ancestors 500,000 years ago.
The team that decoded Neanderthal DNA last November scans it for clues to speech capabilities.
African "megadroughts" likely played a role in where and when early humans traveled.
Two research teams have reprogrammed adult cells into stem cells—without using embryos.
Stem cells are revolutionizing disease study and treatment.
A new study shows that primates' precision grip evolved more than once.
Clues to endurance running and other unique human traits.
A feast before its time.
An "extended family" once lived by Kenya's Lake Turkana.
An innovative new technique to harvest stem cells dispenses with sperm.
A recent genomic study reveals how humans first settled the Americas.
Did surviving an ancient primate virus leave humans open to HIV?
A fossil found in 1952 finally gets dated--and reveals much about early human migration.
The DNA of 14,000 people reveals genetic markers for seven common diseases.
What can ape communication tell us about the origins of human speech?
How do scientists study fossils that remain at the site of discovery?
People vary in addictive behavior - and in the genes that influence it.
Curious artifacts tell scientists about modern human migration into Eastern Europe.
Researchers find a new genetic explanation for why some adults can digest milk.
How does the bilingual brain control which language to speak?
By monitoring avian flu, scientists prepare for possible pandemics.