An “obsession” with the lower jaw of a long-dead human, unearthed in the 1960s at a prehistoric Moroccan campsite, led palaeoanthropologist Jean-Jacques Hublin to the discovery of a lifetime. After ...
When researchers placed a foot-tall quartz crystal and an ordinary sandstone rock in front of two groups of chimpanzees near Madrid, Spain, the chimps did something remarkable. They quickly ignored ...