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Homo ergaster
Homo-ergaster
A reconstruction of Homo ergaster, as seen in BBC's documentary series Walking with Cavemen
Information
Common Name "Working Man"
Range eastern and southern Africa during the early Pleistocene, between 1.8 million and 1.3 million years ago.
Scientific Classification
Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Primates
Family Hominidae
Genus Homo
Species Homo ergaster
Conservation Status
EXSpecies
Extinct

Homo ergaster (meaning "worker man") or African Homo erectus, is a prehistoric species of hominin that lived in eastern and southern Africa during the early Pleistocene, between 1.8 million and 1.3 million years ago.

There is still disagreement on the subject of the classification, ancestry, and progeny of Homo ergaster, but it is now widely accepted to be the direct ancestor of later hominids, such as Homo heidelbergensis, Homo sapiens, and Homo neanderthalensis and Asian Homo erectus.

It is one of the earliest members of the genus Homo, possibly ancestral to, or sharing a common ancestor with, Homo erectus. Some paleoanthropologists consider Homo ergaster to be simply the African variety of Homo erectus; this leads to the use of the term "Homo erectus sensu stricto" for the Asian Homo erectus, and "Homo erectus sensu lato" for the larger species comprising both the early African populations (Homo ergaster) and the Asian populations. The latest discoveries go even further claiming that all five contemporary species of early "Homo" in Africa, "Homo habilis", "Homo rudolfensis", "Homo ergaster", and "Homo erectus" are representatives from the same species, best named "Homo erectus", which evolved about 2 million years ago in Africa and expanded through Eurasia, as far as China and Java, where it was first documented from about 1.2 million years ago. The binomial name was published in 1975 by Groves and Mazák. The second part, "ergaster", is derived from the Ancient Greek ἐργαστήρ "workman", in reference to the comparatively advanced lithic technology developed by the species, introducing the Acheulean industry.

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