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#11
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| Re: Why don't humans have fur? Quote:
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They say german shepherds are more aggressive than wolves because they've been bred for aggression. I've wondered if there are cultures that basically breed for aggression... or did in the past. So, just like a human with no fur who moves to Siberia, maybe I have to find someway to cope with having been bred for aggression when I don't need it. The contents of the local art museum might be the outcome? Or the latest violent movie? |
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#12
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| Re: Why don't humans have fur? Quote:
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As to aggression and me, I play a good game of Halo. Nothing more satiating than killing a dozen people without doing the job in real life. LOL! Just kidding. But on violence and museums… please for the love of god don’t do it. There is a word for that… we call it modern art. Please please PLEASE don’t contribute to the mangled framework we now call modern art. I can barely make out the colors they use now, let alone what artists think people could interpret from it.
__________________ Forum Links: Rules | User Control Panel | Video Tutorials | Blogs | Social Groups | FAQs "With prudence the philosopher approves or blames. If errors triumph, he departs and waits"- Pythagoras (F.13 GVP 174) |
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#13
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| Re: Why don't humans have fur? Quote:
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#14
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| Re: Why don't humans have fur? Quote:
Alan: Atlas holds the world on his shoulders. But what holds Atlas up? Bob: A giant turtle Alan: But what holds that turtle up? Bob: Another turtle. Alan: But what holds that turtle up? Bob: My friend, its turtles all the way down. LOL! So don’t dismiss the existence of fairies, because there is bound to be a turtle under all of us. Wait, that doesn’t make any sense at all. On the irreducible complexity principle and the second law of thermodynamics as applied to evolution, chances are you have already heard of them, just not in that way. In the case of irreducible complexity, there are some cellular functions that that we direly need to keep the whole package going, like blood clotting and stuff like that. The question could then be asked how on earth a little piece of the bigger puzzle like blood clotting can be created via the process of evolution/natural selection? Its actually a very interesting debate. In the case of the second law of thermodynamics, the argument essentially is that things do not organize in random occurrence, but become more disorganized. Its entropy applied to biology. The jumble that is the evolutionary process is, as some would point out, encapsulated in a closed system (life boat earth), which essentially means that the chances for disorder exponentially increases. But we get energy from the sun and stuff like that so it’s not really a closed system. Interesting stuff. Quote:
__________________ Forum Links: Rules | User Control Panel | Video Tutorials | Blogs | Social Groups | FAQs "With prudence the philosopher approves or blames. If errors triumph, he departs and waits"- Pythagoras (F.13 GVP 174) |
| The following users say: THANK YOU - VideCorSpoon for the above post! | ||
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#15
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| Re: Why don't humans have fur? Quote:
---------- Post added 11-17-2009 at 11:38 AM ---------- Last I heard about it, it was because we originated in a hot area(Africa, as far as I'm aware). Fur was a disadvantage for us to cool down. Unlike animals who cool themselves down by breathing on their tounge(cooling the blood cells therein' which circulate through the rest of the body), we developed the sweat mechanism. Lacking fur and obtaining a superior biological cooling system, we could chase down prey for much longer periods of time without overheating. |
| The following users say: THANK YOU - Persona for the above post! | ||
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#16
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| Re: Why don't humans have fur? Speaking about how we once had hair and now we don’t, another important thing to consider is the fact that there is a huge difference in our conception of “evolution” and genuine Darwinian evolution . I notice(not in this thread but in a majority of other evolution themed threads) how people link a certain need to a characteristic and apply evolution in that way. Even Darwin had a problem with that. I think a vast majority of people (including me) confuse a flawed version of evolutionary theory with the more practical application by Darwin. Hilariously enough, Darwin does not even use the term “evolution” in the majority of his books, but rather “modification with descent.” I believe that most people confuse Lamarck with Darwin. Jean-Baptiste Lamarck posited that evolution tied directly with the necessity of a given animal for a certain need. Honestly, I think Darwin did the same thing at some points, but there are a wide range of differences between the two though. Essentially what Lamarck would say is that an animal would accumulate a certain attribute, say extended canines (your pointy teeth… which interestingly some of us have and some of us don’t), in order to efficiently tear meat from the bones of their prey. Those attributes would then be passed to their progeny and so on and so on. So basically, your genetic variation is gained over a period of generations by the immediate need for long teeth sharp teeth in this case. Why is it wrong to assume this? In the case of us hairless monkeys, why wouldn’t people who live in frigid climates automatically grow thicker hair or why people in hot hot hot climates have any hair at all, let alone some having light toned skin? Because we needed x in order to do y is Lamarckian. Darwin knew there was something amiss with that whole notion. In the case of Darwin, evolution came in series of mutations which benefited the possessor causing them to live compared to the others… hence the term “natural selection.” So take a whole group of five foot long rats for example. Say in a certain group, a pairing of the five foot rats yielded a three foot long rat. At a certain time, that three foot rat would not have had the attributes necessary to protect itself compared to other predators and stuff like that. But after a few thousand years, food becomes scarce. The scarcity of food causes a majority of rats to die because they need more energy to survive. But not the three foot long rat, which requires less energy(food) compared to the larger rats, and let’s say has the ability to find food in narrower corridors of a certain ravine the rats dwell in. Over time, the mating takes place and the three foot rat becomes the dominant characteristic. Do that hundreds and thousands of times over and bam… mickey mouse. Persona, one thing I would ask you is how traveling causes genetic drift? Genetic drift occurs in a higher frequency in a smaller, more isolated population as a result of the dramatic change in allele frequencies. It’s almost as though you are applying Lamarckian theory to the opposite effect of genetic drift to point out a genetic systemic process that occurs regardless of the situation. But then again, my knowledge is extremely limited in this area (well.. all of biology, genetics, etc.), so its all hypothetical and its great to discuss the subject with fellow members.
__________________ Forum Links: Rules | User Control Panel | Video Tutorials | Blogs | Social Groups | FAQs "With prudence the philosopher approves or blames. If errors triumph, he departs and waits"- Pythagoras (F.13 GVP 174) |
| The following users say: THANK YOU - VideCorSpoon for the above post! | ||
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#17
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| Re: Why don't humans have fur? An interesting point could be that plastic surgery including dental work, is influencing our constructive evolution, those who wear braces have offspring who have straighter teeth and smaller noses etc. Has this been proven anywhere? |
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#18
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| Re: Why don't humans have fur? Quote:
However, you do have a point though. Say you have people who are born with six fingers who now, thanks to medical advances, have those extra fingers removed in order to fit the normative model. In a base sort of way, not many people would want to mate with a person with six fingers, so the persons genetic line would die off. I suppose that would be an aesthetic selection rather than natural selection if you think about it, but the concept is fundamentally the same. Anyway, because that sixth finger is removed, they are more likely to attract a mate and continue their genetic line. The six finger issue still resides in their genetic code, but the immediate term of selection is bypassed altogether. In this way, you could look at it as though modern medical advancements are increasing the possibilities of genetic diversification. On straighter teeth and smaller noses, I don’t know if the two traits are correlated.
__________________ Forum Links: Rules | User Control Panel | Video Tutorials | Blogs | Social Groups | FAQs "With prudence the philosopher approves or blames. If errors triumph, he departs and waits"- Pythagoras (F.13 GVP 174) |
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#20
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| Re: Why don't humans have fur? since i dont know how to multiquote (cant see videos) i will comment on certain points. first, i can verify you can have depth perception with one eye, since after my first surgery i had the most amazing and spectacular depth perception like i never had before in my life with two eyes and glasses on top. secondly, if we keep cutting off one of our fingers how do the genes know that happened to be able to eliminate it in later models? wouldnt it be better to tie everyone's pinky in a splint for a number of generations so it couldnt do anything, and then the genes would recognize it wasnt being used and stop making them? third, i happen to like kinky crooked and missing teeth...i often chose my mates on that basis. crooked noses is pretty cool too, but not necessary. and last of all, i dont know why we dont have fur or if we ever did, but i think we would look a helluva lot better with it than without! |
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