Characteristics of the genus Homo

Among the first members of the genus Homo we look for an increased body size, a significantly enlarged brain, adaptations to changed dental functions, strengthening of the skull vault and adaptive changes that affected the central structures of the face, as well as changes in the size and sophistication of tool and weapon making indicating the human adaptation to hunt. 

The evolution of hunting and collecting, as well as the evolution of communication and complex cooperation, in a social context, can explain numerous already mentioned changes that are part of the complex of biological and cultural changes in members of the genus Homo. However, we do not find all, but only some of, the mentioned characteristics at the very beginning of the genus Homo, while we also recognize a considerable number of inherited characteristics, those of their australopithecine ancestors.