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Post by Deleted on Apr 21, 2020 1:19:06 GMT
I was thinking about starting a discussion entitled Evolution. As an undergraduate having several courses in evolution, I was contemplating graduate studies in this area but the prospects of a career in marine biology were too tempting. However even at the graduate level I still pursued studies in evolution and this has become the cornerstone of my life philosophy. So, I thought I’d like to share this experience with a discussion called evolution. For example, I’d like to propose some ideas for thought. Why is intercourse such a pleasurable experience. Well even if you’re not a student of evolution consider this. At one time it was determined that the human race had been dwindled down to about 5000 humanoids. Now let’s imagine that men and women would get together on occasion, after hunting down a bison, and in the cave with a bright warm fire and good meal, some would commence to procreation. Out of these cave dwellers, some would find this highly pleasurable, some would not or would not often participate. So only those who would participate finding it pleasurable would persist in their offspring. Repeating this process, elimination of those who would not partake would leave those who would. So, the population ultimately would result in the many fond of procreation as an enjoyable encounter. Those who didn’t would be left behind and subsequently would not participate (their genes would fade out) in the promulgation of the population. So, we are left with a population that ultimately finds intercourse pleasurable. This to me is a simple explanation, but I have other questions. And thinking that further discussion might be fun.
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Post by nyx on Apr 21, 2020 1:28:46 GMT
Humans are a prisoner of their complex body hormones.
I have seen people go crazy when their Thyroid levels are not right for an example.
We have no free thought.
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Post by ZETAR on Apr 21, 2020 1:51:12 GMT
THE HAPPY MOLECULE
SHALOM...Z
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Post by Deleted on Apr 21, 2020 2:17:04 GMT
Okay here is another one. Fruit tastes good. You’ve got apples, oranges, grapes, etc. Now why do you think fruit tastes good. Okay we are mammals as well as many mammals that roamed the range you eat fruit. If your a plant (not trying to be anthropomorphic here) your goal (another assumption) is to survive and prosper. Since you cannot walk around you need others to transport your seed. So, if your seed is in a tasty fruit others will do the transporting for you. So various mammals, giraffes and elephants, bears, large and small mammals including humans probably share a common taste bud and those plants that survived have the best tasty fruit. Seems logical to me.
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Post by Deleted on Apr 21, 2020 12:33:47 GMT
No discussion in evolution would be complete without consideration of the bell curve. I’m assuming everyone knows what a bell curve is. To make it simple a bell curve is drawn on an X and Y axis. The x-axis is a %. The y-axis is an allele (The definition of alleles are pairs or series of genes on a chromosome that determine the hereditary characteristics. An example of an allele is the gene that determines hair color).
Now take the allele for tall/ short and put it into a bell curve for our discussion. The population basis for the first bell curve-would be the height of average American male. The center of the bell curve would be the average height of the American male. Let’s just say it’s 6 foot. To the left and right of the bell curve would be values above and below 6 foot.
Now let’s take another bell curve. The databases for this bell curve would be the NBA. In this bell curve the median per average value would probably be 6’7”. Now let’s compare the two curves. Their shapes would be the same but the Y component would differ. Now let’s say that if you plotted these two Bell curves on a single piece of graph paper of the average American bell curve would fit inside the NBA bell curve. Now if you were to apply some force of evolution to the average American to make them taller the two curves would be identical. That is population dynamics and a simple version of evolution. But what are the forces of evolution?
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Post by Deleted on Apr 21, 2020 13:04:18 GMT
While most of the forces of evolution have been defined around natural scenarios, some are actually behavior activated. Now let’s take a hypothetical situation were Nancy Pelosi is the chairman of the China regime.
She makes a determination that tall soldiers are better than short soldiers. She makes a decree in China that only tall people can propagate.
Eventually the population in China becomes taller. So here we have a force of evolution that is behavioral, political if you will, and now China has the tallest population in the world. And the best basketball players as a sideline consequence. This is an example of a societal behavioral modification to evolution.
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Post by Deleted on Apr 21, 2020 18:11:55 GMT
Continuing, there is a concept in evolution called something like this; selective survival significance. I may not have this terminology exact but it’s been a while. What does selective survival significance mean. In evolution there would be some attribute or allele that would allow others to survive on the bell curve.
So for simplicity let’s take the case of early man, (no I don’t mean you sys) and hypothetically imagine that they were fruit eaters. Now in the days of plenty much fruit abounded. However in times of drought the only fruit available were high on trees.
So early man had to reach high for this fruit in order to survive. Only the tallest members in a tribe could collect fruit. Short people could not survive, this was not a socialistic society, tallness had a selective survival significance and no obligation to share, so that in these times of famine/drought only the tall could grasp at the fruit and survive.
Short people got the short end of the stick, literally, and fell by the wayside. So in this hypothetical example early man who was only about 5 foot five average, at the time, evolved to become 6 foot because some in the gene pool happened to be taller. This is just a crude explanation to provide an idea of how evolution works. So if there is a selective advantage for a particular allele in a changing climate or environment those possessing these attributes are marked likely to survive and thus pass it on to future generations.
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Post by nyx on Apr 21, 2020 19:35:30 GMT
In the 1800s, Charles Darwin produced the survival of the fittest theory to explain evolution.
I have a Mongolian skin spot which traces me back to Genghis Khan.
Since Khan killed everyone in Asia, and his many wives populated this space, one out of every two hundred people in the world are related to Khan.
mrgort you could be related to Khan!
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Post by HAL on Apr 21, 2020 21:09:51 GMT
..Since Khan killed everyone in Asia, and his many wives populated this space, one out of every two hundred people in the world are related to Khan...
Really ?
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Post by Deleted on Apr 21, 2020 21:21:00 GMT
As I understand it, some 100k years ago the humanoid population was reduced to about 5,000, referred to as a bottle neck. So all I can say is thank God for early man and a few horny men and women.
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Post by Deleted on Apr 22, 2020 22:04:01 GMT
There is another component in evolution dealing with populations called variability. This is pretty simple actually, taking again for example, in the human population some people are tall and short. some people have brown eyes some blue, some have brown hair, black hair, or blonde hair. None of these alleles or attributes seem to significantly define individuals in the population, significantly, meaning no survival significance can be attributed to any of these alleles. Sometimes these alleles are linked with other attributes. Say for example blondes may be linked to superior intelligence. Males may be linked to inferior intelligence. Short people may be linked to better eyesight, just some absurd examples but in reality, some alleles are linked. This is what makes genetics so interesting. Now for example if a linked allele has some sort of survival significance (a selective factor in procreation) the allele it is linked to also becomes prominent in the population even though it has no survival significance.
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Post by Deleted on Apr 23, 2020 19:39:05 GMT
Now I know you’re curious because I mentioned “Forces of Evolution”. And some of you might be asking – what’s he talking about.
I’d have to go back to my old notes and books to elaborate on all the forces but as I can recall one force in particular is Mutation.
Usually mutation has the connotation of a deleterious result. But not always. So I’m gonna present the hypothetical situation involving a mutation. A mutation occurs in the genetic DNA. It might be a very slight mutation (or mistake) and most mutations are in fact deleterious. However some may actually have survival significance. So here is a hypothetical instance where a mutation could be beneficial.
Okay let’s go back to early man hundred thousand years ago. In this wild environment there were wolves and bison. The bison are herbivores (they ate grass) and the wolves were carnivores, looking for raw meat. Now in this hypothetical situation wolves had a keen sense of smell and can smell of bison from a mile away. When such a discovery was noted all in the pack would pray on the bison. So here we have a stable environment were wolves and bison thrive as part of an ecological network, or food web.
Now lets take this hypothetical a little further. The wolves have a keen sense of smell they can detect bison from miles away (but not pigs). However in this hypothetical the bison are gone. Could be climate change but for any reason no more bison. However in this environment there were plenty of pigs around. Now most of the wolves did not have the allele or sense of smell to detect pigs. Only a few did. So when this pack of wolves went out hunting most were trying to smell bison, but a few (with the mutation to smell pigs) could smell and track pigs and ultimately have a successful pray encounter. The wolves (most) could not smell pigs but a few did. Those few wolves that could now find an alternative food source in pigs survived. Ultimately the wolf population incorporated this mutation so that they now could smell both pigs, and bison. So you could see from this example that the bell curve moved for wolves. And their survival ironically enough was the result of a mutation. So what is a mutation, in a DNA strand mutation generally is a mistake, a failure in the code, but outside forces such as radiation or environmental contaminants can initiate mutation. So in this hypothetical example the mutation as a force of evolution was beneficial. There are other forces of evolution. Also if all environmental factors are stable a population will tend to normalize, in other words become a classic bill curve.
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Post by HAL on Apr 24, 2020 19:21:47 GMT
Not used to you being serious, Gort.
I'll have a careful read of those posts and come back on it later.
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Post by Deleted on Apr 24, 2020 19:49:33 GMT
It's really an exciting subject, I'm going from memory, but I will need to dig out some info. Trying to make the subject easy, thanks for looking. Ya I know my level sarcasm sometimes exceeds my expectation in a post.
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Post by HAL on Apr 25, 2020 18:32:30 GMT
Chopping bits out of the posts as I read them. so it may be a bit chaotic.
..So only those who would participate finding it pleasurable would persist in their offspring. Repeating this process, elimination of those who would not partake would leave those who would..
But there are lots of other tasks that the 'reluctants' could be doing that would be of value to the group. One doesn't have to be interested in sex to be a proficient hunter, for example.
One of the characteristics of marauding tribes seems to be killing all the males and raping all the women.
Now, is this raping done for the pleasure of it or is the idea to produce more children for the group with the genetic makeup of the victors ?
..She makes a determination that tall soldiers are better than short soldiers. She makes a decree in China that only tall people can propagate...
But tall soldiers would make an easier target. So height is not really an advantage.
..And the best basketball players as a sideline consequence. This is an example of a societal behavioral modification to evolution...
We have the phenomena of black players making up the majority of basket ball players. Most of the tall players in any sport are black.
More later.
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