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Topic: Human evolution


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  Human Evolution
To the human, however, in his need to establish his place and purpose in the universe, the most important material is biological and the most important process is evolution, far it is only here that the human can learn to understand himself, an understanding that is vital to his survival.
Evolution had honed the species to fit the environment and was now in balance.
Evolution, through the liberal application of death and hardship, had built a strong body and a sound mind by the time of the appearance of Homo sapiens sapiens.
www.onelife.com /evolve/manev.html   (8461 words)

  
  Human Evolution - MSN Encarta
Humans and the so-called great apes (large apes) of Africa—chimpanzees (including bonobos, or so-called pygmy chimpanzees) and gorillas—share a common ancestor that lived sometime between 8 million and 6 million years ago.
Paleoanthropology is a subfield of anthropology, the study of human culture, society, and biology.
Humans belong to the scientific order named Primates, a group of over 230 species of mammals that also includes lemurs, lorises, tarsiers, monkeys, and apes.
encarta.msn.com /encyclopedia_761566394/Human_Evolution.html   (1243 words)

  
 Human Evolution
Humans are members of the order Primates which consists of about 180 species (there are 17 different orders of mammals which diverged 80-65 million years ago).
Humans are a member of the family Hominidae which is believed to have diverged about 5 million years before the present (mybp) from the other members of the Old world monkeys.
The first human (Australopithecus afarensis) seems to have an angle between the femur and tibia (Upper and lower leg) that is intermediate to that of humans and gorillas.
biomed.brown.edu /Courses/BIO48/39.Human.Evolution.HTML   (1004 words)

  
 Human evolution at the crossroads: Integrating genetics and paleontology
Using her own research on the teeth of baboons as a case in point, Leslea J. Hlusko said that some of the traits considered important to human evolution, such as the thickness of molar enamel, may be too simplistically interpreted by some paleontologists.
Hlusko organized a Monday symposium on human evolution at the annual meeting of the American Association for the Advancement of Science.
She brought together experts who study phylogenetics, ancient DNA, developmental genetics, quantitative genetics and primate evolution so that they could share the same stage to discuss their current work, and where they may be able to go on together in an effort to understand the evolution of our ancestors.
www.eurekalert.org /pub_releases/2004-02/uoia-hea021104.php   (745 words)

  
 Open Directory - Science: Biology: Evolution: Human   (Site not responding. Last check: 2007-10-24)
Human Evolution - A study of the evolution of hominids.
Human Evolution from Ape to Technological Man - Traces origins from ape ancestors such as Australopithecus to modern man. Talks about Neanderthals and their relationship to the gorilla and chimpanzee.
Human Evolution: The Fossil Evidence in 3D - 3D gallery of the skulls of five modern primate relatives and five fossil ancestors of humans contains, each of which may be rotated through 360 degrees.
dmoz.org /Science/Biology/Evolution/Human   (1297 words)

  
 Teach Evolution and Make it Relevant
Humans and the great apes—chimpanzees in particular—diverged from a common ancestor as recently as about 7 – 8 million years ago (Mya); the transition from this common ancestor to modern humans has been well documented.
Humans, for example, have evolved the ability to walk upright (bipedalism), a much larger and more complex brain, a much greater intellectual capacity, language (spoken and written), and the ability to precisely manipulate very small objects with their hands, among others traits.
A classic lesson on human evolution is the skull comparison, in which students compare the skull characteristics of contemporary humans and apes (such as chimps or gorillas), with fossil hominids.
www.evoled.org /lessons/human.htm   (3830 words)

  
 Man's early hunting role in doubt - human-evolution - 06 January 2003 - New Scientist   (Site not responding. Last check: 2007-10-24)
Hunting skills may not after all have triggered the tremendous burst of human evolution at the beginning of the ice ages nearly two million years ago.
Based on that observation, the team estimated that early humans might have picked up a carcass every few days in the wettest areas, but in drier areas might have got as little as one a month: nowhere near enough to live on.
Evolution would thus favour a long lifespan, which is closely linked to large body size and delayed maturity.
www.newscientist.com /channel/being-human/human-evolution/dn3222-mans-early-hunting-role-in-doubt.html   (682 words)

  
 Handprint : Ancestral Lines
Human evolution is a puzzle made up of thousands of fossil pieces, and the Chart of Human Evolution (below) shows the major pieces of that puzzle arranged in a likely solution — which is still conjectural and open to revision.
Humans are remarkable for the complexity and pace of their evolutionary history.
Skulls are used as evidence for the evolution of The Hominid Brain.
www.handprint.com /LS/ANC/evol.html   (844 words)

  
 Encyclopedia Smithsonian: Human Evolution
Human thought, mood, and action are explored on many levels based on insights from the social sciences and the humanities.
Humanity’s Descent: The Consequences of an Ecological Instability.
Introduces earth history, evolution, genetics, anatomy, primates, and human evolution with an easy to understand text and diagrams that are an effective teaching aid.
www.si.edu /resource/faq/nmnh/evolve.htm   (1912 words)

  
 Evolution and Human Origins by Bruce Bridgeman
Like humans, chimpanzee groups generally practice female dispersal and male philopatry, as Anne Pusey points out in her introductory chapter, with the result, as de Waal notes, that males have less to lose from incest than do females.
Philosopher Carruthers and biological anthropologist Chamberlain bring together in Evolution and the Human Mind anthropologists, linguists and even behavioral geneticists in their effort to understand the human mind through evolution.
Dunbar concludes that hominid group sizes began to exceed those that could be held together by grooming alone somewhere toward the end of the Homo erectus phase, implying that language had taken on part of the role of facilitating social cohesion by that time.
human-nature.com /nibbs/02/origins.html   (1087 words)

  
 DNK Amazon Store :: Principles of Human Evolution   (Site not responding. Last check: 2007-10-24)
Principles of Human Evolution presents an in-depth introduction to paleoanthropology and the study of human evolution.
Lewin proceeds in an orderly manner, beginning with a discussion of "human evolution in perspective," which is really well done as Lewin explains that there really is no agreement among experts about the course of human evolution and that theories are constantly evolving as new discoveries are made.
The text goes on to consider the background to human evolution, humans as animals, hominine beginnings, hominine adaptation, the migration of humanoids out of Africa, the originas of modern humans, the human milieu (which is particularly interesting) and finally more recent migrations.
www.entertainmentcareers.net /book/ProductDetails.aspx?asin=0632047046   (438 words)

  
 Human Evolution — Infoplease.com
The story of human evolution began in Africa about six million years ago and it describes the very long process that our ancestors went through to ultimately become modern humans.
Human brains are larger and more complex; people have elaborate forms of communication and culture; and people habitually walk upright, can manipulate very small objects, and can speak.
The very early years of the transition from ape to human, from 6 million to 4 million years ago, is poorly documented in the fossil record, but those fossils that have been discovered document the most primitive combinations of ape and human features.
www.infoplease.com /ipa/A0932663.html   (1661 words)

  
 ATP AND BIOLOGICAL ENERGY
Several trends of primate evolution are evident in the teeth and jaw.
Human populations today are thus all descended from a single speciation event in Africa and should display a high degree of genetic similarity.
Human Evolution A Virtual Tour of the Smithsonian exhibit on the evolution of humans.
www.emc.maricopa.edu /faculty/farabee/BIOBK/BioBookHumEvol.html   (1877 words)

  
 Human Evolution
Human evolution is not supported by the fossil evidence.
However, the reality of the human fossil record alone is enough to reject the theory of human evolution all together.
It turns out the bones were found in an area of human remains, and now the femur is considered human and the skull cap from a large ape.
www.allaboutcreation.org /human-evolution.htm   (530 words)

  
 Amazon.com: Dawn of Man: The Story of Human Evolution: Books: DK Publishing   (Site not responding. Last check: 2007-10-24)
The evidence demonstrates that a strictly linear progression of human ancestry is difficult or impossible to draw from existing fossil specimens.
The second theme concerns the evolution of human society and the differentiation of male and female roles.
Because human brains take years to develop, there is a need for sustained social bonds (families) to support the maturing human for the duration of its immaturity (i.e., its childhood).
www.amazon.com /Dawn-Man-Story-Human-Evolution/dp/0789462621   (2813 words)

  
 ATP AND BIOLOGICAL ENERGY
Several trends of primate evolution are evident in the teeth and jaw.
Human populations today are thus all descended from a single speciation event in Africa and should display a high degree of genetic similarity.
Human Evolution A Virtual Tour of the Smithsonian exhibit on the evolution of humans.
www.estrellamountain.edu /faculty/farabee/biobk/BioBookHumEvol.html   (1877 words)

  
 Reverse human evolution plausible, testable, U.S. biologist says
Reverse evolution occurs when an organism returns to the genetic state of its ancestors, said Crandall, who wrote a paper on the topic in the Oct. 2003 issue of the research journal Trends in Ecology and Evolution.
Evolution is the process in which occasional helpful mutations spread throughout a population, as the organisms that have them reproduce more.
Scientific doubts on reverse evolution, Crandall wrote, have nothing to do with a popular misconception that evolution “has no direction.” It does in part, he argued—species tend to become better suited to their environment—and that may be irrelevant anyway, since reversion to ancestral genes can occur whether or not one thinks of evolution as directed.
www.world-science.net /exclusives/060306_reversfrm.htm   (784 words)

  
 Human evolution theory founded on female sexual selection and neoteny: the origins of left handedness, Lamarckian ...
Human evolution theory founded on female sexual selection and neoteny: the origins of left handedness, Lamarckian theory and the origins of autism.
Human evolution theory utilizing concepts of neoteny and female sexual selection - an etiology of neuropsychological disorders (autism, dyslexia...) - the origin of left handedness.
There is a powerful body of evidence that suggests that Darwin’s third theory, pangenesis, makes way for an understanding of the etiology of neurological disorders in human beings as evidenced in recent discoveries of human hormonal structures and neurological anomalies.
www.serpentfd.org   (836 words)

  
 Did Climate Change Trigger Human Evolution?   (Site not responding. Last check: 2007-10-24)
It may be a threat to humans' long-term future on the planet, but climate change may have helped bring us into being in the first place, some scientists say.
The evolution of early human species, so the theories go, was concentrated in periods marked by fluctuating environmental conditions.
Humans are thought to have evolved in the Great Rift Valley region of East Africa.
news.nationalgeographic.com /news/2006/02/0202_060202_evolution.html   (392 words)

  
 A Science Odyssey: You Try It: Human Evolution
With the 1912 "discovery" of the Piltdown Man, the study of human evolution was sent down a wrong track.
When the phony Piltdown Man, with its human skull and orangutan's jaw, was finally exposed in 1953, the pieces of the great puzzle began to fall into place.
This activity shows the major hominid (human or human-like) species discovered to date, when they lived, and how they might be related to each other.
www.pbs.org /wgbh/aso/tryit/evolution   (182 words)

  
 Nearctica - Evolution - Human Evolution
A wonderful introduction to human evolution beginning with primate taxonomy and progressing to the fossil record for the primates and man. A series of 10 lectures are contained in pdf files (Adobe Acrobat).
All of the major fossil hominds are discussed in the form of a critique of creationist claims that none of them are ancestors to humans.
If you get confused about how humans fit into the scheme of primate evolution and just exactly what a hominid is, be sure to go here and choose taxonomy from the box in the upper right hand corner.
www.nearctica.com /evolve/human.htm   (623 words)

  
 Mitochondrial DNA Clarifies Human Evolution by Max Ingman
Although the mitochondrial genome is one of the first genomes to be sequenced in its entirety, it was not until recently that the progression of technology allowed sequences of that length to be obtained with relative ease and a study of any appreciable size using whole genomes was undertaken.
The rate of evolution of the rest of the genome was surprisingly even between different sites, different genes and also between the different gene complexes.
Click on this interactive chart of human evolution, stretching from 5 million years ago to the present, to learn about different hominid species.
www.actionbioscience.org /evolution/ingman.html   (1599 words)

  
 - Human Evolution -
This webite focuses on Human Evolution, or the Evolution of man. It looks at our past and our history from an Anthropological (anthropology) point of view.
We evolved from apes through many different stages including the hominid Species "Hominid" refers to members of the human family, Hominidae, which consist of all species from the point where the human line splits from apes towards present day humans.
It is believed that the Paranthropus species evolved on their own and had no part in the evolution of the Homo genus.
www.humboldt.edu /~mrc1   (1649 words)

  
 Human evolution
The comparisons within and between species suggest that about 9 percent of genes that show some variability within humans or differences between humans and chimpanzees have evolved too rapidly to be explained simply by chance.
Likewise, the researchers found that approximately 13 percent of the genes that may vary show evidence of slightly deleterious or harmful mutations in human populations; these include genes involved in determining the basic structure of cells and muscles as well as genes that control traffic in and out of the cell.
By comparing the DNA sequences of the 39 human subjects across the 20,000 genes, the Celera researchers identified DNA sites in the genome where individuals in the sample differed from one another.
www.news.cornell.edu /stories/Oct05/Bustamante.kr.html   (655 words)

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