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Topic: Theories of the origin of humans

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In the News (Thu 23 Nov 17)

  The Origin of HIV and the First Cases of AIDS
This is an extension of the original 'hunter' theory.
Her team of researchers also discovered that the virus had originated in Guinea-Bissau and that its spread was most likely precipitated by the independence war that took place in the country between 1963 and 1974 (Guinea-Bissau is a former Portuguese colony).
Her theory was backed up by the fact that the first European cases of HIV-2 were discovered among Portuguese veterans of the war, many of whom had received blood transfusions or unsterile injections following injury, or had possibly frequented local prostitutes.
www.avert.org /origins.htm   (3707 words)

 29+ Evidences for Macroevolution: the Scientific Case for Common Descent
In evolutionary theory it thus entails common ancestry, descent with modification, speciation, the genealogical relatedness of all life, transformation of species, and large scale functional and structural changes of populations through time, all at or above the species level (Freeman and Herron 2004; Futuyma 1998; Ridley 1993).
Microevolutionary theories are gradualistic explanatory mechanisms that biologists use to account for the origin and evolution of macroevolutionary adaptations and variation.
In evolutionary theory it is taken as axiomatic that an original self-replicating life form existed in the distant past, regardless of its origin.
www.talkorigins.org /faqs/comdesc   (2151 words)

 The Human Race (Men)
Humans are known to be shortlived in comparison to other races, and they are reknown for their tendency towards conflict and aggression.
Humans settle in every kind of environment, except for dense wooden areas which is the territory of elves and the underground which belongs to the dwarves.
Some humans also concentrate in training their magical abilities which they don't possess from birth on as humans are also very talented in mastering skills of the mind.
www.santharia.com /races/humans.htm   (913 words)

 Origin of Life  – Theories and G
Each human has two copies of the genome in virtually every cell of his or her body because of inheritance of one set each from both father and mother.
The original organism had mechanisms (ability to grow, reproduce, and evolve) which led to the evolution of the diverse life forms which now exist on Earth and as indicated above this evolution is documented in the genetic codes of organisms now alive as well as in fossil evidence.
The origin of the primordial organism is therefore the biological equivalent of the “Big Bang Theory” in Astrophysics in which astrophysicists think the entire universe was once the size of a golf ball which then exploded to create the observed universe.
www.azinet.com /originoflife.html   (2663 words)

 Human - Wookieepedia, the Star Wars Wiki - A Wikia wiki
However, Humans discovered space travel early in their history; in fact, they were already present on a few scattered colony planets of the Core Worlds even before the development of hyperdrive, thanks to the use of sleeper ships.
At one point, Humans made first contact with a mysterious alien species who taught them the secrets of the hyperdrive; as it turned out, those aliens were their forgotten oppressors, the Rakata.
Humans were more likely to live among non-Humans on the cosmopolitan Core Worlds, or on frontier worlds at the Outer Rim of the Galaxy such as Tatooine.
starwars.wikia.com /wiki/Human   (3073 words)

 Why Abiogenesis Is Impossible
Miller seemed unimpressed with any of the current proposals on the origin of life, referring to them as “nonsense” or “paper chemistry.” He was so contemptuous of some hypotheses that, when I asked his opinion of them, he merely shook his head, sighed deeply, and snickered—as if overcome by the folly of humanity.
The clay-life theory holds that an accumulation of chemicals produced in clay by the sun eventually led to the hypothetical self-replicating molecules that evolved into cells and then eventually into all life forms on earth today.
Researchers have detected microbes in human and bovine blood that are only 2-millionths of an inch in diameter, but these organisms cannot live on their own because they need more than simple inorganic, or common inorganic molecules to survive.
www.trueorigin.org /abio.asp   (9607 words)

 Origin of mental illnesses - History of theories about mental illness
Hippocrates' theory was an early version of the idea that physiological disturbances or body chemistry might play a role in the development of mental illness.
Freud also regarded human psychological states as an energy system in which blockages in the flow of thought (repression or suppression, for example) would result in disease or illness, expressed as mental or emotional loss of balance.
One attempt to unify the varied theories regarding the origin of mental illness is called simply the "nature versus nurture" theory.
www.minddisorders.com /Ob-Ps/Origin-of-mental-illnesses.html   (4313 words)

 Constructivism, Situated Learning, and Other Learning Theories
That's because the prevailing a theory of learning suggests that teaching mathematics is not a developmental problem but a problem of aptitude.
These theories posit that human learners are much more than pigeons and rats where a stimulus/response approach can be used to condition certain behaviors.
Humans have accumulated (discovered, developed) a huge amount of mathematical knowledge -- far far more than a person can learn in a lifetime, even if the person spent all of their time studying mathematics.
darkwing.uoregon.edu /~moursund/Math/learning-theories.htm   (1142 words)

 Human evolution - Wikipedia, the free encyclopedia
Human evolution is that part of biological evolution concerning the emergence of humans as a distinct species.
This migration and origin theory is usually referred to as the single-origin theory.
"Origin of human chromosome 2: An ancestral telomere-telomere fusion".
en.wikipedia.org /wiki/Theories_of_the_origin_of_humans   (3837 words)

 System Design of Origin - Reviewing the Big bang and other Theories of Creation
Human systems that is created in the image of the Creator particle but simply differs from the Central Particle by its position in relation to the center becomes a cause of concern.
We humans are like the cells of on one body, which has the complete blue print of the whole, but is restricted to work with one blue print that created it.
Humanity fails to understand this central message as they make idol of the messenger and the message and keep them in temples, churches and mosque sand resort to routine dead exercise of worshipping it.
www.geocities.com /quantum_reality2003/origin.htm   (8123 words)

 Origin of Life - The neglect of the theory
The theory is not obvious or intuitive - and the originator of the theory - A. Cairns-Smith himself found it appropriate to explain its discovery using the metaphor of detective work;
Humans sponsor a lot of research into organic chemistry and nucleic acids - since they are themselves constructed out of organic chemistry and nucleic acids.
Little or no evidence is likely to be found by a similar approach for the clay theory - since the clays were most probably long gone before RNA came onto the scene - and it isn't reasonable to expect to find many scars of such an ancient and archaic genetic material in modern organisms.
originoflife.net /neglect   (690 words)

This theory suggests that much if not all of UFO testimony of this kind may be a plot of deliberate mis- and dis-information for a variety of motives.
Advocates of deception theories disagree as to how much of the UFO phenomenon is deliberately 'staged' by geovernments or extragovernmental "rogue" agencies, and whether or not governments 'know the truth' about "real" UFOs and are hiding it through classification, deception, and disinformation.
UFO malevolence is supported by animal and human mutilation cases, the savage experiments performed on UFO abductees, the rare cases of human injury from UFO "attack," and intimidation by the MIB and so forth.
www.fiu.edu /~mizrachs/UFOrigin.html   (2308 words)

 [No title]
As far as the origin of human races is concerned, Darwin’s theory is overlooked this day in age.
There are many theories, though, on the origin of humans, which makes the study more interesting because of the varying ideas.
Humans have the longest life expectancy, by far, of all of the species.
mason.gmu.edu /~kcharles/LL10.doc   (787 words)

 Canada's First Nations: Migration Theories
The theory of an ice-free corridor running north and south through Alberta during the Late Wisconsin period was introduced by geologists in the 1950s.
Although the theory of human trans-oceanic migration is disputed, archaeologist Knut Fladmark believes humans have had the skills to travel by sea for 30,000 years.
Although, some anthropologists believe that humans did not have the skill or the technology for deep-sea voyages, Fladmark argues that cross-Pacific migrations are viable because of a sea current that follows a path from Japan to the North American coastline.
www.ucalgary.ca /applied_history/tutor/firstnations/theories.html   (944 words)

 Behavioral and Biological Origins of Modern Humans
The first, often known as the "out -of-Africa" theory, posits that from at least one million years ago, human populations followed different evolutionary trajectories on different continents, culminating by 100,000 years ago in the emergence of a least three continentally distinct human populations.
The primary alternative to "out-of-Africa" is the theory of multiregional evolution, which postulates that modern humans originated essentially everywhere--in Africa, but also in Europe and Asia--where non-modern humans had lived previously.
It is still possible to argue about these theories, but burgeoning fossil, archeological, and genetic evidence now supports the "out-of-Africa" theory far more strongly.
www.accessexcellence.org /BF/bf02/klein/index.html   (228 words)

 Harvard Gazette: Researchers debate origin of language
The other theory maintains that language is a uniquely human adaptation, or series of adaptations, with no precursors among other species.
The most probable time for its origin was after the ancestors of apes and humans went their separate evolutionary ways, about 6 million years ago.
To prove their new theory conclusively requires more experiments to be done, especially with human infants and other species, including chimpanzees, dolphins, and even chickens.
www.news.harvard.edu /gazette/2002/12.12/01-language.html   (1253 words)

 Department of Anthropology
Topics to be covered are human genetics, evolution, variation, and growth and development, as well as primate evolution and behavior.
They will demonstrate their knowledge of human genetics, evolution, variation, and growth and development, as well as primate evolution and behavior by successfully completing three in-class exams.
Students will demonstrate their knowledge of human evolution to their classmates via their participation in the assigned study group and discussion.
www.geneseo.edu /~anthro/Anth_105_syllabi.php   (666 words)

 Possible Sites for the Origin of Life
These theories range from life beginning in deep sea thermal vents to bacterial life arriving from other places in the universe, among others.
One current theory is that life originated deep beneath the surface of the ocean at deep sea hydrothermal vents.
Arrhenius' theory accounted for life's origins by simply stating that life did not originate on the Earth, but originated elsewhere in the universe.
www.chem.duke.edu /~jds/cruise_chem/Exobiology/sites.html   (980 words)

 Multiregional hypothesis - Wikipedia, the free encyclopedia
Multiregional evolution contrasts with the "recent single origin hypothesis (RSOH)." According to that theory, human evolution was a consequence of many cases of species replacement, as newer species replaced older ones across the human range.
An older theory is Polygenic evolution, a multiple origins theory in which the different human populations or races had independent origins and evolved in isolation from each other.
According to the Multiregional hypothesis, geographic differences between human populations are the results of climatic variation, isolation by distance, and historical accidents (genetic drift).
en.wikipedia.org /wiki/Multiregional_hypothesis   (1399 words)

 No title
The origin and development of the elements, the galaxy, the solar system, of life, of all the species of plants and animals, the origin of man, and the origin of all things are included in this cosmology.
Treatment of either the theory of evolution or the theory of scientific creationism shall be limited to scientific evidence for each theory and inferences from such scientific evidence and shall not include religious instruction.
In any public school instruction concerning the theories of the origin of man and the earth which includes the theory commonly known as evolution, a board of education of a school district may include, as a portion of such instruction, the theory of intelligent design.
www.atheisteye.com /WarOnScience.html   (3623 words)

 New DNA Evidence Supports Multiregional Evolutionary Model?
Contrary to the claims of a recent study, the multiregional model, which states that modern humans evolved from several different groups of hominids (including Neanderthals) that interbred at some point to produce modern humans, fails to explain the genetics seen in modern humans, Neanderthals, and early modern humans.
Two theories explaining the origin of humans are popular today among evolutionists.
Overall, the lack of "evolution" for humans over the last 40,000 years stands in sharp contrast to the large differences seen between modern humans and Neanderthals over the same period of time.
www.godandscience.org /evolution/multiregional.html   (1291 words)

 About religion: why it started and how it evolved
Groups of theories on the origin of religion:
Most religions teach that they were directly revealed by their deity/deities to humanity, and are unrelated to other world religions.
Religions were originally based on the particular beliefs of their founders and prophets.
www.religioustolerance.org /rel_theory1.htm   (1143 words)

 Georgia General Assembly - HB 179
HB 179 - Education; evolution theory; teaching of factual scientific evidence
(a) Whenever any theory of the origin of humans or other living things is included in a course of study offered by a local unit of administration, factual scientific evidence supporting or consistent with evolution theory and factual scientific evidence inconsistent with or not supporting the theory shall be included in the course of study.
(b) The method of instruction described in subsection (a) of this Code section is intended to strengthen the analytical skills of students by requiring the presentation of a broad range of scientific evidence regarding theories of the origin of humans and other living things.
www.legis.state.ga.us /legis/2005_06/search/hb179.htm   (252 words)

 The Origin of the Moon
One early theory was that the moon is a sister world that formed in orbit around Earth as the Earth formed.
However, in general the theory languished until 1984 when an international meeting was organized in Kona, Hawaii, about the origin of the moon.
In the 1990's, Dr. Robin Canup wrote a Ph.D. dissertation on the moon's origin and the giant impact hypothesis, which produced new modeling of the aggregation of the debris into moonlets, and eventually, into the moon itself.
www.psi.edu /projects/moon/moon.html   (1158 words)

 Theories of origins--strengths and weaknesses
Origin of large groups, such as birds and mammals from reptiles, or reptiles from amphibians.
Jamieson, Fausset and Brown's commentary says the language of Genesis 7:20 "is not consistent with the theory of a partial deluge." Wesley seemed to believe in a world-wide flood.
It is a strange blindness that questions the orthodoxy of all who reject the traditional twenty-four-hour day theory when the truth is that endorsement of that theory is incompatible with belief in the self-consistency of the Scriptures.
home.earthlink.net /~mflabar/OriginsTheories.htm   (4167 words)

 S.C. may teach human origin theories
Proponents of teaching various theories of human origin, including creationism, have gained support from the state's public school reform oversight panel.
South Carolina's high school biology instruction incorporates the widely acknowledged theory espoused by Charles Darwin, whose 19th century research led him to conclude life evolved during millions of years from simple cells that adapted to the environment.
This is so because, if the ultimate origin of the Universe (i.e., what may or may not lie behind the Big Bang) is not knowable, then science (or at least the science I thought we were talking about) is incapable of proving the truth or falsity of theories about ultimate origin.
www.physorg.com /news9021.html   (863 words)

 Amazon.com: Extinct Humans: Books: Ian Tattersall,Jeffrey H. Schwartz   (Site not responding. Last check: 2007-10-09)
The introductory history of human taxonomy sets us up for the discussions to follow and reminds us of our tendency to read more into human history than can reasonably be inferred from the evidence.
"Extinct Humans" is a fascinating account of human evolution, extraordinarily illustrated with crisp, powerful photographs of fossils which drive home the point that these are the remains of actual beings who have inhabited this world before us, whether they were our direct ancestors or instead "cousins" to our own line of descent.
Their discussion of the interaction between Neaderthals and modern humans in Europe (and possibly between Homo erectus and modern humans in southeast Asia) is especially absorbing, delving into questions of technological change, the emergence of symbolic thought, and the creation of language.
www.amazon.com /Extinct-Humans-Ian-Tattersall/dp/0813334829   (2258 words)

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