`The Importance of Dietary Carbohydrate in Human Evolution
... Our article – which was subjected to rigorous academic review – proposes a testable hypothesis that over the last 800,000 years our ancestors met the considerable and sustained glycemic energy requirements of our expanding brain, reproductive and other tissues, through a combination of carbohydrate ...
... Our article – which was subjected to rigorous academic review – proposes a testable hypothesis that over the last 800,000 years our ancestors met the considerable and sustained glycemic energy requirements of our expanding brain, reproductive and other tissues, through a combination of carbohydrate ...
Bitter taste perception in Neanderthals through the analysis of the
... this evolved before the divergence of both lineages (Wooding et al. 2004). However, it has recently been discovered that the trait is controlled in chimpanzees by two common alleles at the TAS2R38 locus that are not shared with humans, and thus the non-taster alleles have evolved at least twice duri ...
... this evolved before the divergence of both lineages (Wooding et al. 2004). However, it has recently been discovered that the trait is controlled in chimpanzees by two common alleles at the TAS2R38 locus that are not shared with humans, and thus the non-taster alleles have evolved at least twice duri ...
Divergence, demography and gene loss along the human lineage
... MCMC estimates on the prior distribution. The posterior mean tends to be confined to local areas near a given prior mean if the prior standard deviation (s.d.) is assumed to be small. In the opposite case of a large prior s.d., the posterior mean tends to differ greatly from the prior mean, whereas ...
... MCMC estimates on the prior distribution. The posterior mean tends to be confined to local areas near a given prior mean if the prior standard deviation (s.d.) is assumed to be small. In the opposite case of a large prior s.d., the posterior mean tends to differ greatly from the prior mean, whereas ...
Anthropology
... Tree of Human Evolution Fossil evidence indicates that the first humans evolved from ape ancestors at least 6 million years ago. Many species of humans followed, but only some left descendants on the branch leading to Homo sapiens. In this slide show, white skulls represent species that lived during ...
... Tree of Human Evolution Fossil evidence indicates that the first humans evolved from ape ancestors at least 6 million years ago. Many species of humans followed, but only some left descendants on the branch leading to Homo sapiens. In this slide show, white skulls represent species that lived during ...
Multiregional hypothesis explained
... process is assumed a priori and is the basis of analyses to account for both the origin of modern humans and the differentiation of these humans into the different, widespread populations found today. It is correct to say that multiregional evolution and evolution by replacement are extremes, becaus ...
... process is assumed a priori and is the basis of analyses to account for both the origin of modern humans and the differentiation of these humans into the different, widespread populations found today. It is correct to say that multiregional evolution and evolution by replacement are extremes, becaus ...
The Lake Ndutu cranium and early Homo Sapiens
... The partial cranium from Lake Ndutu, near Olduvai Gorge in northern Tanzania, has generally been viewed as Homo erectus, although points of similarity to H. sapiens have also been recognized. Bones of the vault are in fact quite thick, and the cranium is small. Length and breadth dimensions are comp ...
... The partial cranium from Lake Ndutu, near Olduvai Gorge in northern Tanzania, has generally been viewed as Homo erectus, although points of similarity to H. sapiens have also been recognized. Bones of the vault are in fact quite thick, and the cranium is small. Length and breadth dimensions are comp ...
Art as a biological adaptation, or: why modern humans
... climatic changes, but they also took place when no climatic stress can be identified. If the Neanderthals, ...
... climatic changes, but they also took place when no climatic stress can be identified. If the Neanderthals, ...
To what extent did Neanderthals and modern humans interact?
... infections are usually triggered by a number of circumstances and are subject to de novo genesis, the appearance of a novel deleterious or lethal strain at any given place and time would not be unlikely. Such an epidemic would have greatly weakened the Neanderthal population in a manner similar to t ...
... infections are usually triggered by a number of circumstances and are subject to de novo genesis, the appearance of a novel deleterious or lethal strain at any given place and time would not be unlikely. Such an epidemic would have greatly weakened the Neanderthal population in a manner similar to t ...
LENScience Senior Biology Seminar Series Walking Upright: The
... to eat an energy and nutrient rich diet which supports the high level of metabolic need of the brain. Fossil evidence suggests that major changes in brain size seen in Homo erectus coincides with the evolution of hunting and gathering communities. These communities consumed a hi ...
... to eat an energy and nutrient rich diet which supports the high level of metabolic need of the brain. Fossil evidence suggests that major changes in brain size seen in Homo erectus coincides with the evolution of hunting and gathering communities. These communities consumed a hi ...
Human Molecular Evolution Lecture 2
... • Then from contemporary levels and patterns of genetic diversity we can suggest that modern humans descend from a single regional subpopulation and reject the multiregional hypothesis. • The estimates of ~10,000 for Ne for humans and for western chimps implies that neutral diversity is being lost b ...
... • Then from contemporary levels and patterns of genetic diversity we can suggest that modern humans descend from a single regional subpopulation and reject the multiregional hypothesis. • The estimates of ~10,000 for Ne for humans and for western chimps implies that neutral diversity is being lost b ...
The Origins of Human Modernity
... genetic bottlenecks to contrive explanations for inherent weaknesses of their model, they overlook that such bottlenecks tend to reduce fitness in the population [25,26] rather than bring about the population’s supremacy [27] as proposed for Eve’s progeny. Already at this point the hypothesis begins ...
... genetic bottlenecks to contrive explanations for inherent weaknesses of their model, they overlook that such bottlenecks tend to reduce fitness in the population [25,26] rather than bring about the population’s supremacy [27] as proposed for Eve’s progeny. Already at this point the hypothesis begins ...
Human brain 3X larger than brains of nearest relatives: WHY
... an age in early human ontogeny (specifically, an age before children have been seriously influenced by written language, symbolic math and formal education) at which human’s skills of physical cognition (concerning things such as space, quantities, and causality) are very similar to those of our nea ...
... an age in early human ontogeny (specifically, an age before children have been seriously influenced by written language, symbolic math and formal education) at which human’s skills of physical cognition (concerning things such as space, quantities, and causality) are very similar to those of our nea ...
Ecological dominance and the final sprint in hominid evolution
... acquiring the strength and courage of the enemy, clear traces of cannibalism couM indicate also higher levels of intergroup competition. There have been also found a couple of skeletons which exhibit wounds that seem to have resulted from weapons. This claim has for example been made regarding the p ...
... acquiring the strength and courage of the enemy, clear traces of cannibalism couM indicate also higher levels of intergroup competition. There have been also found a couple of skeletons which exhibit wounds that seem to have resulted from weapons. This claim has for example been made regarding the p ...
Explaining robust humans
... Humans living pre-Flood and early post-Flood may well have had longevity genes. These longevity genes may have also caused robusticity, or could have been linked to genes that caused robusticity.32 Or, alternatively, the robusticity could have allowed for longevity. However, the genes (or genetic me ...
... Humans living pre-Flood and early post-Flood may well have had longevity genes. These longevity genes may have also caused robusticity, or could have been linked to genes that caused robusticity.32 Or, alternatively, the robusticity could have allowed for longevity. However, the genes (or genetic me ...
Handout-Fossil Record and Early Man
... The overall fossil record reveals that even when we use the evolutionists dates (which are incorrect) and arrange the fossil according to these dates that no human evolution has taken place. When humans appear in the fossil record more than 4 million years ago, according to the evolutionary dates, t ...
... The overall fossil record reveals that even when we use the evolutionists dates (which are incorrect) and arrange the fossil according to these dates that no human evolution has taken place. When humans appear in the fossil record more than 4 million years ago, according to the evolutionary dates, t ...
Section 7 - HCC Learning Web
... 8. During the Miocene there were many more forms of hominoids than there are today and it was known as ________________________ 9. hominoids ...
... 8. During the Miocene there were many more forms of hominoids than there are today and it was known as ________________________ 9. hominoids ...
Chapter 5 Evolution Matters: Human Variation Today
... Synopsis: The biocultural approach of physical anthropology emphasizes that human evolution and variation are shaped by both biology and culture—that is, by genetic factors and environmental factors. Physical anthropologists employ such an understanding in a variety of ways. For instance, human life ...
... Synopsis: The biocultural approach of physical anthropology emphasizes that human evolution and variation are shaped by both biology and culture—that is, by genetic factors and environmental factors. Physical anthropologists employ such an understanding in a variety of ways. For instance, human life ...
Paleoanthropological aspects of the enigma of Homo
... higher cognition in H. sapiens, and H. naledi may have fulfilled a preparatory role in this development. Van Huyssteen (2006:105) considers the origin of the human mind as closely tied to the kind of cognitive fluidity that includes symbolic and mythical dimensions. This means that our cognitive beh ...
... higher cognition in H. sapiens, and H. naledi may have fulfilled a preparatory role in this development. Van Huyssteen (2006:105) considers the origin of the human mind as closely tied to the kind of cognitive fluidity that includes symbolic and mythical dimensions. This means that our cognitive beh ...
Environment and Human Society
... Human beings have lived on earth for approximately more than 2 million years. Records of primitive humans and their activities are buried in the rocks along with their fossils. The fossil records show not only dipicts the various stages of human evolution but also the life style and behaviour of pri ...
... Human beings have lived on earth for approximately more than 2 million years. Records of primitive humans and their activities are buried in the rocks along with their fossils. The fossil records show not only dipicts the various stages of human evolution but also the life style and behaviour of pri ...
Chapter Twelve: The Debate over Modern Human Origins
... movement certainly existed and still do. They did not, however, prevent the spread of human populations. ...
... movement certainly existed and still do. They did not, however, prevent the spread of human populations. ...
Does cultural evolution need matriliny?
... In humans, post-reproductive females may enhance their fitness by provisioning daughters’ offspring (Hawkes et al. 1997; 2000); cetaceans, too, have evolved long post-menopausal Iifespans and pass on cultural knowledge within stable matrilineal clans. In their ‘grandmother hypothesis,’ O’Connell et ...
... In humans, post-reproductive females may enhance their fitness by provisioning daughters’ offspring (Hawkes et al. 1997; 2000); cetaceans, too, have evolved long post-menopausal Iifespans and pass on cultural knowledge within stable matrilineal clans. In their ‘grandmother hypothesis,’ O’Connell et ...
Chapter 4 Long-Term History of Human Diet
... Faunal and floral remains found in association with tools at archaeological sites can also be an important source of information about prehistoric human diets. For instance, many of the bones of large ungulates found at the early archaeological sites in east Africa have cut marks on them inflicted b ...
... Faunal and floral remains found in association with tools at archaeological sites can also be an important source of information about prehistoric human diets. For instance, many of the bones of large ungulates found at the early archaeological sites in east Africa have cut marks on them inflicted b ...
the hominization process - European Anthropological Association
... to have existed around 3.77 mya, is another proof of bipedalism. It shows a convergent big toe, heel strikes, arches etc similar to humans in many aspects. There are, however, certain features possessed by afarensis such as shorter hind limbs, longer foot, longer toes etc. which suggest that austral ...
... to have existed around 3.77 mya, is another proof of bipedalism. It shows a convergent big toe, heel strikes, arches etc similar to humans in many aspects. There are, however, certain features possessed by afarensis such as shorter hind limbs, longer foot, longer toes etc. which suggest that austral ...
Lecture PPT - Carol Lee Lab
... • Complex culture: more primitive tools initially, but then after H. sapiens invaded Europe out of Africa, they then adopted H. sapiens tool technology • Overlapped in geography with H. sapiens in Europe for about 10,000 years Reconstruction of Neanderthal child from Gibraltar (Anthropological Insti ...
... • Complex culture: more primitive tools initially, but then after H. sapiens invaded Europe out of Africa, they then adopted H. sapiens tool technology • Overlapped in geography with H. sapiens in Europe for about 10,000 years Reconstruction of Neanderthal child from Gibraltar (Anthropological Insti ...
Homo - Carol Lee Lab
... • Complex culture: more primitive tools initially, but then after H. sapiens invaded Europe out of Africa, they then adopted H. sapiens tool technology • Overlapped in geography with H. sapiens in Europe for about 10,000 years Reconstruction of Neanderthal child from Gibraltar (Anthropological Insti ...
... • Complex culture: more primitive tools initially, but then after H. sapiens invaded Europe out of Africa, they then adopted H. sapiens tool technology • Overlapped in geography with H. sapiens in Europe for about 10,000 years Reconstruction of Neanderthal child from Gibraltar (Anthropological Insti ...
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.