Two articles, one published in the journal “Nature” and one in the journal “Proceedings of the National Academy of Sciences” (PNAS), describe a research about the possible coexistence of different species of hominins in East Africa between 3.8 and 3.3 million years ago. In 2015 fossils found in Ethiopia were assigned to a new species called Australopithecus deyiremeda, which lived close to the species Australopithecus afarensis, the one the famous specimen nicknamed Lucy belonged to.