From Early Hominins to Homo Sapiens
摘要
This chapter introduces humans as members of the Hominidae family, alongside chimpanzees, gorillas, and orangutans. I trace the evolution of the hominin lineage since its divergence from the last common ancestor with chimpanzees, drawing on both fossil and genetic evidence. I briefly present key fossil discoveries, including those of early hominins such as Sahelanthropus tchadensis, Orrorin tugenensis, and members of the genus Australopithecus, and discuss the significance of bipedalism and anatomical adaptations. A substantial part of the chapter focuses on members of the genus Homo and describes how ancient DNA helps us reconstruct their evolution and their relationship to extinct human species such as Neanderthals and Denisovans. The chapter also discusses recent findings, such as genetic changes potentially linked to vocal communication and the complexity of modern human origins in Africa.