Paleoanth - HCC Learning Web
... most often used, because it is the primate most related to us. • The bonobo has also been used, it is equally related to us, because these two species split from each other AFTER the hominin line had already diverged from them. ...
... most often used, because it is the primate most related to us. • The bonobo has also been used, it is equally related to us, because these two species split from each other AFTER the hominin line had already diverged from them. ...
Springer A++ Viewer - Genome Biology
... Three papers in this week's Science reveal genetic changes in humans that may have influenced brain evolution. Two genes involved in brain development have gone through positive selection in modern humans, according to two papers from the laboratory of Bruce Lahn at the University of Chicago. And Aj ...
... Three papers in this week's Science reveal genetic changes in humans that may have influenced brain evolution. Two genes involved in brain development have gone through positive selection in modern humans, according to two papers from the laboratory of Bruce Lahn at the University of Chicago. And Aj ...
versión PDF - U. de Chile
... taken H. erectus remains unclear, but migrating animal herds may have helped lead it to these distant lands. As humans moved into more northern latitudes, they encountered new dietary challenges. The Neandertals, who lived during the last ice ages of Europe, were among the first humans to inhabit ar ...
... taken H. erectus remains unclear, but migrating animal herds may have helped lead it to these distant lands. As humans moved into more northern latitudes, they encountered new dietary challenges. The Neandertals, who lived during the last ice ages of Europe, were among the first humans to inhabit ar ...
Molecular Contributions to the Construction of the Human Phylogeny
... Model suggests that Homo erectus migrated out of Africa one to two million years ago and since then there has been concurrent evolution of modern humans across the Old World through constant gene flow (Fohran et al. 2008). Inherent in this model is the idea that humans and Neandertals were members o ...
... Model suggests that Homo erectus migrated out of Africa one to two million years ago and since then there has been concurrent evolution of modern humans across the Old World through constant gene flow (Fohran et al. 2008). Inherent in this model is the idea that humans and Neandertals were members o ...
a revision of his definition and a new estimation of his emergence date
... As noted above, all Homo peoples must possess all principal anatomical features of present humans. For classing species within the Homo genus some classic anthropologists have used as criterion the secondary anatomical features particularly those of the skull as the facial structure. They have consi ...
... As noted above, all Homo peoples must possess all principal anatomical features of present humans. For classing species within the Homo genus some classic anthropologists have used as criterion the secondary anatomical features particularly those of the skull as the facial structure. They have consi ...
Chapter 15 Recent Human Evolution Overview • The first part of this
... One computer simulation suggests that the coastal route is not enough to explain all the data. ...
... One computer simulation suggests that the coastal route is not enough to explain all the data. ...
20.Human.Neanderthal.Selection
... – Parallel origin of Hs in different regions – Requires gene flow ...
... – Parallel origin of Hs in different regions – Requires gene flow ...
Using mitochondrial and nuclear DNA markers to
... common (female) ancestor. The coalescent principle can be used to estimate the number of generations that separate this individual from the present. To assign a date, the rate of mutation per generation must be estimated. The mtDNA molecular clock has been ‘‘calibrated’’ by measuring the genetic dif ...
... common (female) ancestor. The coalescent principle can be used to estimate the number of generations that separate this individual from the present. To assign a date, the rate of mutation per generation must be estimated. The mtDNA molecular clock has been ‘‘calibrated’’ by measuring the genetic dif ...
Chapter 23: How Humans Evolved
... culturally. Differences in populations in skin color reflect adaptation to different environments, rather than genetic differentiation among populations. ...
... culturally. Differences in populations in skin color reflect adaptation to different environments, rather than genetic differentiation among populations. ...
EVOLUTION
... A. The mechanism for evolution is B. A progressive change in the characteristics of organisms is C. A trait that makes a species survival more likely is called a(n) ...
... A. The mechanism for evolution is B. A progressive change in the characteristics of organisms is C. A trait that makes a species survival more likely is called a(n) ...
Physical Anthropology
... maybe those behaviours were present in the apelike, human-like ancestor some seven million years ago...and perhaps brought those characteristics with us from that ancient, ancient past” (Goodall, 2007) ...
... maybe those behaviours were present in the apelike, human-like ancestor some seven million years ago...and perhaps brought those characteristics with us from that ancient, ancient past” (Goodall, 2007) ...
Great Mysteries of Human Evolution
... other hominid species. Members of Homo neanderthalensis (Neanderthals), who lived in Europe, have a reputation as lumbering brutes, but they had brains as big as or bigger than those of humans and awesome hunting skills that helped them survive cyclic ice ages for half a million years or more. In As ...
... other hominid species. Members of Homo neanderthalensis (Neanderthals), who lived in Europe, have a reputation as lumbering brutes, but they had brains as big as or bigger than those of humans and awesome hunting skills that helped them survive cyclic ice ages for half a million years or more. In As ...
Teaching Human Evolution - the Biology Department
... from radiometrically dated sites in east African. They suggest that the breccia containing A. africanus remains may be 3 to 2.4 m.y. old. Relative to the preceding australopithecine species the face of A. africanus is broader and less projecting. The brain is slightly larger but the body is much the ...
... from radiometrically dated sites in east African. They suggest that the breccia containing A. africanus remains may be 3 to 2.4 m.y. old. Relative to the preceding australopithecine species the face of A. africanus is broader and less projecting. The brain is slightly larger but the body is much the ...
Review Book Topic D: Evolution - wfs
... 9. Hominid fossils consist only of bones and teeth and were preserved where dry sediments have quickly covered them and have remained undisturbed. 10. Due to the incomplete record, it is not entirely clear how the different species of hominid are related. 11. Many details of human evolutionary origi ...
... 9. Hominid fossils consist only of bones and teeth and were preserved where dry sediments have quickly covered them and have remained undisturbed. 10. Due to the incomplete record, it is not entirely clear how the different species of hominid are related. 11. Many details of human evolutionary origi ...
Human Evolution - MStew
... Tool use and bipedalism (Darwin/Washburn) Energy efficiency and bipedalism ...
... Tool use and bipedalism (Darwin/Washburn) Energy efficiency and bipedalism ...
new version of the theory of unique and recent origin of modern man
... differentiate the two principal species, erectus and sapiens, of our genus. Hence they tried to define H. sapiens as having modern DCT in contrast with H. erectus having primitive DCT. But the variation of DCT during the long existence period of Homo peoples shows a complex continuation and it is in ...
... differentiate the two principal species, erectus and sapiens, of our genus. Hence they tried to define H. sapiens as having modern DCT in contrast with H. erectus having primitive DCT. But the variation of DCT during the long existence period of Homo peoples shows a complex continuation and it is in ...
page 1 of 12, VERSION A IB35AC: Human Biological Variation
... in some populations and quite rare in others. These differences vary in large part because a. Some populations evolved into Homo sapiens earlier than others, and as such, not all of them have yet achieved the derived state of lactase persistence. b. The populations that practice pastoralism have cre ...
... in some populations and quite rare in others. These differences vary in large part because a. Some populations evolved into Homo sapiens earlier than others, and as such, not all of them have yet achieved the derived state of lactase persistence. b. The populations that practice pastoralism have cre ...
The Study of Molecular Evidences for Human Evolution, Gene Flow
... strong body structure, proper use of tools, etc. But the truth is, the Neanderthals are extinct and the DNA collected from the fossil was not sufficient enough to analyze. Finally with a new approach and new techniques the Neanderthal genome has been sequenced [39] and revealed the fact that there w ...
... strong body structure, proper use of tools, etc. But the truth is, the Neanderthals are extinct and the DNA collected from the fossil was not sufficient enough to analyze. Finally with a new approach and new techniques the Neanderthal genome has been sequenced [39] and revealed the fact that there w ...
Document
... • the first anthropoid ape fossil dates to Algeria (50 MYA). • small anthropoid apes found in Egypt (30 MYA) and Kenya (25 MYA). • another gap to 15 MYA when several small hominids roaming N. Africa. • very few fossils from 6 to 14 MYA! ...
... • the first anthropoid ape fossil dates to Algeria (50 MYA). • small anthropoid apes found in Egypt (30 MYA) and Kenya (25 MYA). • another gap to 15 MYA when several small hominids roaming N. Africa. • very few fossils from 6 to 14 MYA! ...
Still Evolving After All These Years
... new to human anatomy. The thick, straight black hair shared by most East Asians, for example, arose only within the past 30,000 years, thanks to a mutation in a gene called EDAR, which is crucial for orchestrating the early development of skin, hair, teeth and nails. That genetic variant traveled wi ...
... new to human anatomy. The thick, straight black hair shared by most East Asians, for example, arose only within the past 30,000 years, thanks to a mutation in a gene called EDAR, which is crucial for orchestrating the early development of skin, hair, teeth and nails. That genetic variant traveled wi ...
115KB - NZQA
... This would have meant water of Africa dispersal model: levels were down during a period of cooling • The Out of Africa (replacement) theory / glaciation. maintains that the genes in modern-day Discusses how the admixture could have humans all came out of Africa. As humans helped the Homo sapiens to ...
... This would have meant water of Africa dispersal model: levels were down during a period of cooling • The Out of Africa (replacement) theory / glaciation. maintains that the genes in modern-day Discusses how the admixture could have humans all came out of Africa. As humans helped the Homo sapiens to ...
The evolution of the anatomically modern or
... cannot even be traced back as far as late Pleistocene fossils ...
... cannot even be traced back as far as late Pleistocene fossils ...
Recent African origin of modern humans
In paleoanthropology, the recent African origin of modern humans, or the ""out of Africa"" theory (OOA), is the most widely accepted model of the geographic origin and early migration of anatomically modern humans. The theory is called the ""out-of-Africa"" theory in the popular press, and the ""recent single-origin hypothesis"" (RSOH), ""replacement hypothesis"", or ""recent African origin model"" (RAO) by experts in the field. The concept was speculative before it was corroborated in the 1980s by a study of present-day mitochondrial DNA, combined with evidence based on physical anthropology of archaic specimens.Genetic studies and fossil evidence show that archaic Homo sapiens evolved to anatomically modern humans solely in Africa between 200,000 and 60,000 years ago, that members of one branch of Homo sapiens left Africa at some point between 125,000 and 60,000 years ago, and that over time these humans replaced other populations of the genus Homo such as Neanderthals and Homo erectus. The date of the earliest successful ""out of Africa"" migration (earliest migrants with living descendants) has generally been placed at 60,000 years ago based on genetics, but migration out of the continent may have taken place as early as 125,000 years ago according to Arabian archaeological finds of tools in the region.The recent single origin of modern humans in East Africa is the predominant position held within the scientific community. There are differing theories on whether there was a single exodus or several. An increasing number of researchers believe that ""long-neglected North Africa"" may have been the original home of the first modern humans to migrate out of Africa.The major competing hypothesis is the multiregional origin of modern humans, which envisions a wave of Homo sapiens migrating earlier from Africa and interbreeding with local Homo erectus populations in multiple regions of the globe. Most multiregionalists still view Africa as a major wellspring of human genetic diversity, but allow a much greater role for hybridization.Genetic testing in the last decade has revealed that several now extinct archaic human species may have interbred with modern humans. These species have been claimed to have left their genetic imprint in different regions across the world: Neanderthals in all humans except Sub-Saharan Africans, Denisova hominin in Australasia (for example, Melanesians, Aboriginal Australians and some Negritos) and there could also have been interbreeding between Sub-Saharan Africans and an as-yet-unknown hominin (possibly remnants of the ancient species Homo heidelbergensis). However, the rate of interbreeding was found to be relatively low (1–10%) and other studies have suggested that the presence of Neanderthal or other archaic human genetic markers in modern humans can be attributed to shared ancestral traits originating from a common ancestor 500,000 to 800,000 years ago.