Evolution of the skull (exterior view):
bony case of the brain of vertebrates.
Human evolution is the part of biological evolution concerning the emergence
of humans as a distinct species. It is the subject of a broad scientific
inquiry that seeks to understand and describe how this change and development
occurred. The study of human evolution encompasses many scientific disciplines,
most notably physical anthropology, linguistics and genetics. The term
"human", in the context of human evolution, refers to the
genus Homo, but studies of human evolution usually include hominid,
such as the australopithecines.