A Million Years of Data Confirms: Monsoons Are Likely to Get Worse

After 40 years of AIDS, here’s why we still don’t have an HIV vaccine

Ancient 'magical' amulet used to ward off the 'evil eye' rediscovered after 40 years

How did Neanderthals and other ancient humans learn to count? Archaeological finds suggest that people developed numbers tens of thousands of years ago. Scholars are now exploring the first detailed hypotheses about this life-changing invention.