Difference between revisions of "10. Characteristics of H. ergaster"
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Homo ergaster was the probable ancestor of the later homo populations. It emerged in early African populations nearly 1.9 million years ago. H. ergaster had a prominent browridge, a rounded skull, and its teeth were very small, especially when it was compared to the teeth of Australopithecus. (Citation to manual page 23) H. ergaster's body was probably smooth, nearly hairless, and was one of the first hominids to regulate its body temperature by sweating. Its skin would have also been most likely dark to protect it from the Sun's rays. H. ergaster traveled mostly on foot, searching for meat to feed its growing brain and body. To be able to conserve energies from his muscles while walking upright, H. ergaster developed a narrower pelvis. Due to this tight pelvis, baby H. ergasters were born immature in the brain, allowing its brain to grow after it has been born. Nearly 1.6 million years ago, with help from this giant, complex brain, H. ergasters began using Oldowan stone tools, and heart shaped handaxes. Overall, H. ergaster evolved a lot from the earlier hominids, and it later will evolve into a more sophisticated organism. [http://www.bbc.co.uk/sn/prehistoric_life/human/human_evolution/leaving_home1.shtml] | Homo ergaster was the probable ancestor of the later homo populations. It emerged in early African populations nearly 1.9 million years ago. H. ergaster had a prominent browridge, a rounded skull, and its teeth were very small, especially when it was compared to the teeth of Australopithecus. (Citation to manual page 23) H. ergaster's body was probably smooth, nearly hairless, and was one of the first hominids to regulate its body temperature by sweating. Its skin would have also been most likely dark to protect it from the Sun's rays. H. ergaster traveled mostly on foot, searching for meat to feed its growing brain and body. To be able to conserve energies from his muscles while walking upright, H. ergaster developed a narrower pelvis. Due to this tight pelvis, baby H. ergasters were born immature in the brain, allowing its brain to grow after it has been born. Nearly 1.6 million years ago, with help from this giant, complex brain, H. ergasters began using Oldowan stone tools, and heart shaped handaxes. Overall, H. ergaster evolved a lot from the earlier hominids, and it later will evolve into a more sophisticated organism. [http://www.bbc.co.uk/sn/prehistoric_life/human/human_evolution/leaving_home1.shtml] | ||
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-Alexander Kim | -Alexander Kim | ||
Revision as of 21:49, 17 September 2013
Return to History 8 Human Origins Concepts
Homo ergaster was the probable ancestor of the later homo populations. It emerged in early African populations nearly 1.9 million years ago. H. ergaster had a prominent browridge, a rounded skull, and its teeth were very small, especially when it was compared to the teeth of Australopithecus. (Citation to manual page 23) H. ergaster's body was probably smooth, nearly hairless, and was one of the first hominids to regulate its body temperature by sweating. Its skin would have also been most likely dark to protect it from the Sun's rays. H. ergaster traveled mostly on foot, searching for meat to feed its growing brain and body. To be able to conserve energies from his muscles while walking upright, H. ergaster developed a narrower pelvis. Due to this tight pelvis, baby H. ergasters were born immature in the brain, allowing its brain to grow after it has been born. Nearly 1.6 million years ago, with help from this giant, complex brain, H. ergasters began using Oldowan stone tools, and heart shaped handaxes. Overall, H. ergaster evolved a lot from the earlier hominids, and it later will evolve into a more sophisticated organism. [1] File:Http://www.valleyanatomical.com/catalog/images/H1MT2-Homo-Ergaster.jpg
-Alexander Kim
