Did Modern Humans Evolve From Homo Erectus Or Homo Ergaster

Erectus signifies a major shift in hominin evolution most notably through increased brain and body size and increasingly complex tools and behaviors. However it is possible that H.

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Evidence of Homo ergaster with a brain volume of up to 850 cm 3 in Africa.

Did modern humans evolve from homo erectus or homo ergaster. Heidelbergensis or perhaps directly to archaic Homo sapiens. Erectus most particularly the African representatives of the species sometimes called H. In the meantime all that can be said with any certainty is that H.

Ergaster is not out of place in this sequence. It includes brief explanations of the various taxonomic ranks in the human lineage. Where Did Homo Erectus Come From.

Erectus eventually gave rise to Homo sapiens. Fossil remains show this species had expanded its range into southern Eurasia by 175 million years ago. Ergaster is thought to have evolved from either H.

Many of the older African fossils formerly known as Homo erectus have now been placed into a separate species Homo ergaster and this species is considered to be ancestral to Homo erectus. Erectus is an ongoing and unresolved dispute within palaeoanthropology. Homo erectus were the first of the hominins to emigrate from Africa and from this species spread through Africa Asia and Europe.

These features are considered adaptations to a life lived on the ground indicating the loss of earlier tree-climbing adaptations with the ability to walk and possibly run long distances. Erectus also sometimes classified as a separate species Homo ergaster remained in Africa and evolved into Homo sapiens. However a few researchers split them into two species-- Homo ergaster literally working human and Homo erectus.

Heidelbergensis may have arisen from H. The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species Homo sapiens throughout the history of life beginning some 42 billion years ago down to recent evolution within H. Homo ergaster or African Homo erectus may have been the first human species to leave Africa.

Erectus that lived contemporaneously with modern humans during the Late Pleistocene. One population of H. Habilis may have been the first to leave Africa after which it may have evolved into a pre- ergaster erectus form that then moved into Africa and Asia.

Rudolfensis to post- Homo erectus that is to H. The redefined Homo erectus is now generally believed to be a side branch on our family tree whereas Homo ergaster is now viewed as one of our direct ancestors. They also sometimes differ by place much as humans do in physical trends across the planet.

Sapiens during and since the Last Glacial Period. Although it was anatomically and behaviorally primitive compared to modern humans H. 18 15 MYA.

Most paleoanthropologists refer to them as Homo erectus literally upright human. Among paleoanthropologists who accept it as a species distinct from H. One of these groups was Homo erectus the other group ultimately became our own species Homo sapiens.

Rudolfensis in East Africa. Their descendents Asian Homo erectus then spread eastward and were established in South East Asia by at least 16 million years ago. Neanderthalensis the Denisovans known from remains from Denisova Cave in Russia and perhaps H.

Those who do accept Homo ergaster consider this species to be the common ancestor of two groups of humans that took different evolutionary paths. First true hunter-gatherer ancestor and also first to have migrated. Table 1 Early genus Homo.

Homo erectus meaning upright man is an extinct species of archaic human from the Pleistocene with its earliest occurrence about 2 million years ago and its specimens are among the first recognisable members of the genus Homo. Early African Homo erectus fossils sometimes called Homo ergaster are the oldest known early humans to have possessed modern human-like body proportions with relatively elongated legs and shorter arms compared to the size of the torso. If this much is agreed there is still uncertainty as to how and where H.

Ergaster constitutes a species of its own or should be subsumed into H. Homo ergaster is an extinct species or subspecies of archaic humans who lived in Africa in the Early Pleistocene. Homo erectus fossils dont all look the same and the difference between the earliest and most recent reveal a lot of variation as the species changed over time.

Homo erectus is found in Asia. This is due to the fact that Herectus was the first of the hominins which is where most of our modern human traits began to appear in fossil records. By 19 million years ago some of the early transitional humans had evolved into a new fully human species in Africa.

Despite having a heavier more flattened braincase H. Erectus in a broad geographic sense over the course of more than one million years evolved from pre- Homo erectus probably H. Antecessor and any or none of them could have been ancestors of H.

Erectus was the first human ancestor to spread throughout the Old World having a distribution in Eurasia extending from the Iberian Peninsula to Java. If they are indeed a distinct species they constitute yet another archaic human in addition to H. It is speculated that modern humans evolved from Herectus about 200000 years ago.

Ergaster is most often proposed as the ancestor of Homo species of the Pleistocene Epoch.

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