For most of human evolution, the story of the brain seemed to move in one direction: up. Over millions of years, our ...

Over the past two decades, some studies have suggested that human brains are shrinking. But there is also evidence that IQ scores have risen over the past century. But is it possible for us to get ...

The brains of modern humans are around 13% smaller than those of Homo sapiens who lived 100,000 years ago.Exactly why is still puzzling researchers. Traditionally our "big brain" is thought to be what ...