Fossilized teeth in Ethiopia reveal two human ancestors coexisted 2.6 million years ago, including a potentially unknown species

Afar region in Ethiopia reveals a fascinating discovery. Fossils of multiple human ancestor species are unearthed. These species coexisted about 2.6 to 2.8 million years ago. This challenges old views of human evolution. The discovery includes a new Australopithecus species. Early Homo genus members were also present. This suggests a complex, branching evolutionary history.