So researchers at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, decided to compare adult chimpanzees, gorillas and bonobos with human children of a year or 18 months in age.

ECONOMIST: Human evolution

To find out if chimpanzees share this sense of fairness, Keith Jensen and his colleagues at the Max Planck Institute for Evolutionary Anthropology, in Leipzig, designed a way for chimps to play the ultimatum game.

ECONOMIST: Evolution

Following five painstaking years spent extracting her bones from their sandstone casing, Zeresenay Alemseged of the Max Planck Institute for Evolutionary Anthropology, in Leipzig, and his colleagues have described her in Nature.

ECONOMIST: An ancient child has been discovered