genus of the family Hominidae (order Primates) characterized by a relatively large cranial capacity, limb structure adapted to a habitual erect posture and a bipedal gait, well-developed and fully opposable thumb, hand capable of power and precision grips, and the ability to make standardized precision tools, using one tool to make another. Together with modern man, Homo sapiens, the genus includes the extinct species H. habilis, H. erectus, and H. heidelbergensis as well as the extinct Neanderthals (H. neanderthalensis) and the early form of H. sapiens called Cro-Magnon.
We welcome your comments. Any revisions or updates suggested for this article will be reviewed by our editorial staff. Contact us here.
Regular users of Britannica may notice that this comments feature is less robust than in the past. This is only temporary, while we make the transition to a dramatically new and richer site. The functionality of the system will be restored soon.