Homo erectus is one of the most important species in human evolution and is generally regarded as a major stage between earlier australopithecines and later archaic and modern humans. The species appeared approximately 1.9 million years ago and survived in some regions until about 100,000 years ago, although the exact dates vary among fossil sites. Homo erectus is significant because it shows important developments in body structure, brain size, technology, behaviour, and geographical expansion. The earliest fossils attributed to Homo erectus were discovered in Africa, particularly in East Africa. Important specimens include the fossils from Koobi Fora and West Turkana in Kenya, Olduvai Gorge in Tanzania, and other African sites. Later, Homo erectus populations spread beyond Africa into Asia and Europe. The famous Java fossils from Indonesia and the Peking Man fossils from Zhoukoudian, China, provide important evidence of its wide geographical distribution. Some scholars use the term Homo erectus broadly for these populations, while others distinguish certain Asian fossils as separate groups or subspecies. Homo erectus had a more human-like body than earlier hominins. Its