Ethiopian eyes (face) are sharp. In the capital of Ethiopia in Africa, Guanyunian has the skeleton of the world's oldest human ancestors. This is the case. The Great Rift Valley in East Africa, located in this country, is not only one of the most active areas in global tectonic activity, but also one of the archaeological centers of ancient human beings, where the earliest human skeleton fossils were unearthed. The precious Lucy skeleton, which scientists call human ancestors, was discovered in 1974 by Professor Donald Johansen, a famous American archaeologist, in the lower reaches of the Awash River in the Great Rift Valley of East Africa in Ethiopia, more than 3 million years ago.