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Author | Topic: Evolution is a basic, biological process | ||||||||||||||||||||
RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
sexual selection is probably the reason for the greatly expanded ability of the human brain compared to other creatures -- it is the peacock tail of brains.
the theory is that sexual selection involved complex courtship rituals, with song and dance and body adornments, and the individuals that were the most creative got reproduction rights. this ends up as a positive feed-back loop with greater awareness and appreciation of {creativity\complexity} requiring even more {creativity\complexity} in the next generation. this also explains music dance and art and their importance in human culture even today (the rock-band-groupies phenomena). and this awareness of creativity leads to all other awareness issues. we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Eventually the superior efforts of the X-Ray spectroscopist Crick and mathematician Watson conclusively demonstrated that DNA is a double helix and won for them the prize and the Nobel. let us not forget the woman who actually took those pictures that determined the structure, but who was left out of the limelight ... http://www.spartacus.schoolnet.co.uk/SCfranklinR.htm we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
there are other surveys that show that 80% of people believe that evolution should be taught while only 32% feel that creationism should be (yes there is some overlap).
I don't put any stock in surveys without knowing the process by which they were conducted.
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
you can set up your preferences so that you receive an e-mail for every reply to any and all of your posts. you access your profile from the top menu line and you will see buttons, one for
Receive Discussion Board Email (help) ... (_) yes (_) no you can also set topics you create to send you an e-mail for every post on that thread (this is one of the check boxes at the startup dialog box ... this is available from the {{edit}} button, and you will see it right under the white post box (for original topics only):
[_] Email Notification: Registered users can have email sent to them whenever someone replies. there are some glitches in the system right now, but this usually works. you can then sign on to your e-mail and pick all the links to all the replies ... and enjoy the fray. ps ... welcome. we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
There was a recent article commenting on what would have happened if Wallace had published first — we might be talking of Wallaciscm. and there is some evidence that Darwin's knowledge of Wallace's work impelled him to finally put it all together after procrastinating for several years. have you also read "The SONG OF THE DODO: ISLAND BIOGEOGRAPHY IN AN AGE OF EXTINCTIONS" by David Quammen? (click for amazon.com review) he has a lot of information of Wallace's work and it is a very readable book. I might look your book up, but may be too old to take advantage of it ... another 50 years might be pushing it ...
(link to amazon.com review of the book -- click here) we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
or he hesitated because he was not sure, not knowing the mechanism ...
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
a couple of links on the mind development issue and one specifically on the effect of sexual selection on the development of humans:
(1) Left Brained Apes (click)
Language is one critical difference. Humans are "left brained" -- the planum temporale that controls language is much larger on the left. (Laymen may know the term because the left brain also controls right-handedness.) Hopkins' brain scans found that orangutans, gorillas, chimps and bonob De Waal's own research is more controversial: He sees roots of complex cognition and even morality in the behavior of both apes and monkeys. ... Kakowet, who stopped zookeepers from accidentally drowning baby bonobos? The ability to look at the world through someone else's perspective -- in this case, to realize the babies would be in the path of rushing water and cannot swim -- is incredibly advanced thinking once thought unique to humans, he explained. Skimpy on real evidence but intriguing. and: (2) Precis of 'The mating mind: How sexual choice shaped the evolution of human nature’ (published April 2000 by Doubleday in U.S., Heinemann in U.K.), by Geoffrey F. Miller (click)
'The mating mind' revives and extends Darwin's suggestion that sexual selection through mate choice was important in human mental evolution — especially the more 'self-expressive' aspects of human behavior, such as art, morality, language, and creativity. Viewed from a macro-evolutionary perspective, the human brain fits this profile of sexually-selected ornaments: it is unique among living primates, has high metabolic costs and enormous complexity, and its capacities are conspicuously displayed during courtship (especially verbal courtship). The brain's low level of sexual dimorphism is congruent with evidence that human mate choice is mutual, with males and females almost equally choosy about the mental traits of long-term sexual partners. The comparison of the human mind to a peacock tail is mine, but this is part of the factual basis for it. (a little hard to read due to the form, sorry). there are two aspects of "natural selection" that are involved, one is the raw survival of the individual -- the survival of the fittest part -- and the other is the ability of the individual to mate -- sexual selection. imho, the role of sexual selection has been largely ingnored due to a (victorian?) bias against talking about sex. that sexual selection has been active in the development of humans can be easily observed from the relative sizes of the sexual apparatus. enjoy we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
consciousness has been exhibited by several apes ... probably the best known instance is when a child fell into a chimpanzee enclosure and one of the females protected him and took him near the door for the keepers.
another is listed on my previous post. then there are dolphins that make artistic ring bubbles in the water ... perhaps there is a critical mass of neural connections that once passed results in conscious thought. This message has been edited by RAZD, 01-03-2005 22:44 AM we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
but of course these three brains is another example of evolution. and the conflict between them is another argument against design.
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
from Page not found - People For the American Way
* 83% of Americans say Darwin’s theory of evolution belongs in the nation’s science classes * 66% Support Evolution-oriented Positions: * - 20% say schools should teach only evolution, with no mention of creationism; * - 17% say schools should teach only evolution in science class, but would permit religious explanations for the origins of humankind to be covered in another, non-science class * - 29% would allow creationism to be discussed along with evolution in science class, but it should be made clear that evolution is scientific theory while creationism is a belief, not science. * 29% Support Creation-oriented Positions or both positions: * - 13% felt creationism should be taught alongside evolution * - 16% felt only creationism should be taught * 5% are not sure. Note that this fits with the 20%-60%-20% pattern found in many areas, where 20% are advocates of change for the positive, 60% are at different levels of indifferent, and 20% resist change no matter what it is. and from Comparing Christian beliefs in U.S. with those of other countries
Some of the results for the USof(N)A were: (62.8%) "I know God exists and I have no doubts about it" (33.5%) "The Bible is the actual word of God and it is to be taken literally, word for word." (35.4% --) "Human beings developed from earlier species of animals.." They also had this note:
since 1944, the Gallup Poll has been asking Americans whether they "believe in God or a universal spirit." The answers have always been 94% or more affirmative. These numbers have been so widely reported in academic articles, and the media that they have been almost etched in stone. However, the ISSP results are under 63%. The wide gap is probably due to the different wording of the question asked. The ISSP requires a degree of certainty of belief that is not present in the Gallup Poll. This shows that many Americans who believe in God are not that certain about their conviction. I have more of this on another board (On Netscape Community Boards) and this should properly be addressed in a new thread. hope this helps. we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
gravity does not really "exist" ... rather that it is not a "force" at all but a curve in space-time. perhaps the "mind" is also a curvature in space-time caused by the electrical activity ... more activity, more curvature
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
illusion could just be a loose connection ... or a short-circuit through muddy waters.
we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Phi = (51/2+1)/2 or 2/(51/2-1) and it is also the ratio between the "diagonal" of a pentagon to the side and many other things .... the Parthenon is based on a golden ratio rectangle.
just to help a little
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
heh. I always thought it should be Leonardo Phibonacci ... seriously
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RAZD Member (Idle past 1435 days) Posts: 20714 From: the other end of the sidewalk Joined: |
my two sense:
the discipline of evolution is composed of theories and facts. the theories are the concepts of how things happened, and the facts are the observed instances, both in the labs and in the field, in the present and in the past (fossil records, etc.) thus evolution is {discipline \ theory \ fact} ... all three, but each with different {connotations\overtones}. we could talk about the discipline of evolution and the "law" of natural selection, and all the facts that back it and the lack of exceptions. or we can talk about the theory of natural selection. what we call it has no effect on the behavior of the process: the result is the same. it is semantics at one level of understanding, but it is also true that the promotion of theory to law was arbitrary. no law was passed, and no concept found was absolutely correct. the term "law" was applied in the time when it was felt that everything was knowable and all we needed to do was to determine what the "laws" were that the universe operated under. scientists no longer feel this way. the problem is not trying to promote theory to the level of a universal "law" but that the existing theories that are labeled "laws" don't measure up to that standard. from Law Definition & Meaning | Dictionary.com
law n.
1. A rule of conduct or procedure established by custom, agreement, or authority. 2.a. The body of rules and principles governing the affairs of a community and enforced by a political authority; a legal system: international law. - b. The condition of social order and justice created by adherence to such a system: a breakdown of law and civilized behavior. 3. A set of rules or principles dealing with a specific area of a legal system: tax law; criminal law. 4. A piece of enacted legislation. 5.a. The system of judicial administration giving effect to the laws of a community: All citizens are equal before the law. - b. Legal action or proceedings; litigation: submit a dispute to law. - c. An impromptu or extralegal system of justice substituted for established judicial procedure: frontier law. 6.a. An agency or agent responsible for enforcing the law. Often used with the: The law... stormed out of the woods as the vessel was being relieved of her cargo (Sid Moody). - b. Informal. A police officer. Often used with the. 7.a. The science and study of law; jurisprudence. - b. Knowledge of law. - c. The profession of an attorney. 8. Something, such as an order or a dictum, having absolute or unquestioned authority: The commander's word was law. 9. Law - a. The body of principles or precepts held to express the divine will, especially as revealed in the Bible. - b. The first five books of the Hebrew Scriptures. 10. A code of principles based on morality, conscience, or nature. 11.a. A rule or custom generally established in a particular domain: the unwritten laws of good sportsmanship. - b. A way of life: the law of the jungle. 12.a. A statement describing a relationship observed to be invariable between or among phenomena for all cases in which the specified conditions are met: the law of gravity. - b. A generalization based on consistent experience or results: the law of supply and demand. 13. Mathematics. A general principle or rule that is assumed or that has been proven to hold between expressions. 14. A principle of organization, procedure, or technique: the laws of grammar; the laws of visual perspective. You have to get to #12 before scientific laws are mentioned ... and while {12.a.} is a pretty strong statement, it can certainly be applied to natural selection. The more relaxed {12.b.} can also be applied to many of the theories within the discipline of evolution, such as "punctuated equilibrium" (even though scientists argue about it). Notice that the "law of gravity" does not explain the observed rotation of all galaxies. To make observations fit the "law" we have to assume massive amount of unobserved {"dark"} matter and {"dark"} energy to the point where over 90% of the universe is unknown {"dark"} stuff. Not too good a showing for an invariable relationship ... eh? and we can also go toTheory Definition & Meaning | Dictionary.com theory n.
1. A set of statements or principles devised to explain a group of facts or phenomena, especially one that has been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena. 2. The branch of a science or art consisting of its explanatory statements, accepted principles, and methods of analysis, as opposed to practice: a fine musician who had never studied theory. 3. A set of theorems that constitute a systematic view of a branch of mathematics. 4. Abstract reasoning; speculation: a decision based on experience rather than theory. 5. A belief or principle that guides action or assists comprehension or judgment: staked out the house on the theory that criminals usually return to the scene of the crime. 6. An assumption based on limited information or knowledge; a conjecture. I submit to you that there is no difference between {LAW12b} and {THEORY1}, that often the {THEORY1} of today fits the definition of {LAW12a} (ie - natural selection) and further that these are the definitions used in science. The problem is not the semantics but the connotations most people have of "law" as absolute and of "theory" as conjecture -- both {invalid\incomplete} in the world of science. Making observations fit the {law} is not the scientific process, and thus the preference for theory these days as a descriptive term (albeit one with flaws as well). At least it has the connotation of {changeable based on more complete information or better understanding}. enjoy. This message has been edited by RAZD, 01-07-2005 10:35 AM we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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