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Old 09-October-2006, 01:54 AM
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sense Evolution has created different species( i think thats the right word) of man,bird,ect,ect( EX. white black mexian) (EX. blue jay,red robin, wood pecker) according to their geological location....do you think in time we will evolve farther apart...or will we become one inevitable 'being'

i hope this makes sense...
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Old 09-October-2006, 02:01 AM
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"sense Evolution has created different species( i think thats the right word) of man,bird,ect,ect( EX. white black mexian) (EX. blue jay,red robin, wood pecker) according to their geological location."

thats only a guess
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Old 09-October-2006, 02:48 AM
Ronald Brak Ronald Brak is offline
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All humans are one species. A species is defined by being able to mate and produce fertile offspring. In fact, humans are more closely related to each other and have less genetic variation than most species of animals. This is due to our species passing few a bottleneck where only a small group of ancestors survived to pass on genes. We might think human races look very different but this is probably a result of our reliance upon sight. Other mammals probably rely upon scent to judge genetic similarity.

It's not possible for humans do develop into seperate species without isolation for very long periods of time and this isn't likely to happen on earth. Since humans are so closely related we are already one "being." Racial differences are in general insignificant and I find they are only of importance when deciding how much sun screen to take on a fishing trip.
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Old 09-October-2006, 03:06 AM
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Define "we."

Also, different "races" of humans are not different species, different races, or anything of the sort. Environmental pressures (intensity of sunlight, in fact) have caused minor responses to ensure survival, but they are hardly enough for the different groups to have "evolved apart."
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Old 09-October-2006, 03:16 AM
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Originally Posted by Tobin Dax View Post
Define "we."
mankind


but with the uncertanty of the future...could we still evolve into different species and if we do in time evolve into one "being" absolute in its mature....would we begin to...devolve?

...stupid question yes....but as i was typing that...it came to mind..in my head it made sense that we would devolve

forgive me for my ignorance.....and spelling :P
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Old 09-October-2006, 03:24 AM
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Originally Posted by johnathan View Post
mankind


but with the uncertanty of the future...could we still evolve into different species and if we do in time evolve into one "being" absolute in its mature....would we begin to...devolve?

...stupid question yes....but as i was typing that...it came to mind..in my head it made sense that we would devolve

forgive me for my ignorance.....and spelling :P
I suspect that humans could evolve into different species at some point. I don't know what you mean by "evolve into one "being" absolute in its mature"?

There is no such thing as devolving. Such a concept implies that evolution involves becoming a "better" or "higher" organism and devolving is the opposite direction. But there is no such direction, species evolve to better fit their environment, there is nothing "higher" about humans than slime molds. Each fits their environment.
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Old 09-October-2006, 03:27 AM
Ronald Brak Ronald Brak is offline
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Well, nothing devolves as there is no direction in evolution, only what works. For example a flatworm might have a very simple body plan, the same body plan that has existed for hundreds of millions of years, but it still exists because it works. And it's not that the flatworm hasn't been evolving. It still evolves to deal with changes in it's environment such as temperature, composition of water, parasites and predators, but it has done this without losing the basic body plan.

There is no perfection to evolve to. A kangaroo that is well adapted to Australia is not so well adapted to Alaska. And there is no perfection to devolve from. There is only what works given the constraints of the past and the current environment.
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Old 09-October-2006, 03:39 AM
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when i said "evolve into one "being" absolute in its mature"
one being= all man kind have the exact genetic make up...the EXACT...same strands of dna...b/c soner or later...at some point in time...we will become one in the same...granted, only if we all live that long( as a race).
absolute in its mature= meaning....perfect...in every way shape and form.

devollving was the wrong word to use.....what if....ok picture this.
999,000,000,000,000,000,000 years everyone has the EXACT same genetic makeup. if one person is allergic to something...then everyone will be ( but sense we are perfect we will not be allergic to anything). as we procreate we will have offsprings exactly the same.....in all walks of life....you could consider them clones....

doesnt a copy of a copy of a copy of a copy degrade?
wouldnt our genetic make -up, in time, break down.....and in a manner....well,devolving...genetically
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Old 09-October-2006, 03:55 AM
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Well, what with all the humans there are in the world today and the considerably different selection pressures many of us live under compared to our ancestors, we should be racking up genetic diversity at the moment.

Quote:
doesnt a copy of a copy of a copy of a copy degrade?
Analog yes, but you can think of DNA reproducing similar to a digital copy which doesn't degrade. Of course mistakes do happen and these can be the source of beneficial mutations (although the vast majority are harmfull).
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Old 09-October-2006, 04:08 AM
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for mistakes in the denetic code to happen...would that make up imperfect?
but...what if we were completely...flawless...were all the same...wouldnt procreation become imbreeding? with imbreeding...we get f* ups....well...i guess that would explain the mistakes you reffered too...
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Old 09-October-2006, 04:21 AM
Ronald Brak Ronald Brak is offline
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Quote:
for mistakes in the denetic code to happen...would that make up imperfect?
but...what if we were completely...flawless...were all the same...wouldnt procreation become imbreeding? with imbreeding...we get f* ups....well...i guess that would explain the mistakes you reffered too...
There is no such thing as perfect. My inborn ability to resist cold is handy in Lapland but merely ends up making my circulation less efficient if I happen to live my life in Fiji. My pink skin is handy for creating vitimen D in cloudy Holland but a distinct drawback in sunny Australia.

As for inbreeding, we got a lot of genes in us. Some of them are bound to be lousy just due to bad luck basically. However, the fact that we get a half our DNA from each of our parents means that even if you get a lousy gene from your dad the decent one you get from your mum can compensate. But if you were to mate with your sister or brother (yuk!) then there would be a good chance that you would both have one bad copy of a gene from your father and they could both end up in the child causing problems. (And no, banjo playing is not genetic.)
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Old 09-October-2006, 04:26 AM
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My pink skin is handy for creating vitimen D in cloudy Holland
are you serious?
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Old 09-October-2006, 04:49 AM
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Quote:
are you serious?
Yes, perfectly serious. Everyone started with dark skin when we all lived near the equator, then some people travelled north and started wearing clothes to protect them against the cold. As a result their skins made little vitamen D which is produced by the sunlight on the skin. People with pale skin were able to survive better. Red and blonde hair can also increase the amount of sunshine that reaches your skin and scalp. People from places such as Japan where it's hot enough in summer to go naked and cold enough in winter to make you bundle up deal with this problem through rapid tanning and go pale in winter and brown in summer. (Nowadays many Japanese people say indoors and remain pale all year round.)
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Old 09-October-2006, 05:24 AM
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Try Googling "vitamin D." Try reading talkorigins.org for more information on evolution. (Not trying to step on your toes, here, Ronald, but this is a case where spelling matters!)
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Old 09-October-2006, 05:50 AM
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Quote:
(Not trying to step on your toes, here, Ronald, but this is a case where spelling matters!)
If you'd given me just a couple more posts I'm sure I could have spelt it more than just two different ways. Let's see, vitimen, vitamen, vitimin, vitarmin... My creativity knows no bounds.
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Old 09-October-2006, 12:53 PM
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There will never be on common human Genome because even if you were to create individuals with identical DNA it would be different in the next generation due to copying errors and mutations.
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Old 09-October-2006, 06:38 PM
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Quote:
Originally Posted by Ronald Brak View Post
If you'd given me just a couple more posts I'm sure I could have spelt it more than just two different ways. Let's see, vitimen, vitamen, vitimin, vitarmin... My creativity knows no bounds.
I have no doubt!
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Old 09-October-2006, 10:21 PM
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Last time I checked, you still need two people to make a new one. So, how can a male and female both have identical DNA?

IMO, this is where the ID argument falls completely to pieces. An IDesigner would work to eliminate mutations, since all his creations are already ideally suited to their environment. On the other hand, natural selection requires mutation to function. If we all had the same DNA, we'd be in some deep doo-doo if anything ever changed. Not to mention, we'd all be susceptible to being wiped out by a single virus.
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Old 10-October-2006, 10:39 AM
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Mutatuions happen, everyone has hundereds of DNA differences compared to their parents.
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Old 11-October-2006, 03:04 AM
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sense there will always be mutations in DNA....would that mean we will always evolve?
do you think we will continue to evolve as long as our planet keeps changing?
EX: temp. change, techtonic plates shifting,CO2 accumilation in the ozone
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