Anti-Creationists......time to speak your clout
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Roots Oceanic wrote: »Monotremes are evolved from reptiles, emerging around 285 million years ago as mammal-like. These creatures were, like monotremes today, small, mostly nocturnal, and still laid eggs. These animals are represented today not only by the platypus, but the echidna as well.
We can go ahead and answer the question @waterproof has been pressing, transitioning nicely to the topic of mammals evolving from reptiles..
Reptiles are ectotherms (or better known as "cold blooded"). This means that they rely on outside sources for temperature control. This is why lizards lay in the sun for heat. This means that the environment has to be suitable, or the habitats of these creatures have to be tolerable to survive.
As reptiles evolved into mammals, what we call endotherms ("warm blooded"), they gained the ability to regulate body temperature by internal mechanisms as opposed to strictly relying on outside temperature.
So, as reptiles, animals do not need internal functions for temperature regulation because they are dependent on the environment, living where temperature is constantly warm. In freezing weather, they would not be able to survive.
Most likely due to change of temperatures, reptiles adapted by growing hair and evolving temperature regulating ? functions to survive. From there, they evolved into mammals.
It is felt that hair was first evolved in early mammals to help regulate temperatures. The earliest mammals grew these sensory cones between the scales of the evolving reptiles, which, when brushed on objects, gave a stimulus to the brain. Certain remnant scales still exist on rats' tails, armadillo shells and the backs of pangolins. Animal whiskers are still sensory receptacles. Hair is mainly the protein keratin, a form of skin, which is the same material making up the epidermis, feathers, fingernails, horns, hooves and claws. Humans have about 100,000 hairs on our head, while sea otters have 170,000 to 1,000,0000 hairs in their underfur; only one of the otters’ three types of hair. Polar bear hairs have hollow cores. The cores scatter light, making the hairs seem white. Actually, they are colorless. Sunlight passes through the bear's long guard hairs to its black skin, which absorbs the radiation as heat. The inner insulating hair prevents the heat from being radiated back to the air (similar to glass of a greenhouse). Most mammals can cause their hair to become ? , thus increasing the air, (i.e., heat) retention. Although humans have lost most of their body hair, goose bumps are the results of our own relic muscles that still exist which used to control these hairs. White-tailed deer grow winter coats four times thicker than summer coats.
http://www.bobpickett.org/evolution_of_mammals.htm
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When scientists first decoded the human genome in 2000, they were quick to portray it as proof of humankind’s remarkable similarity. The DNA of any two people, they emphasized, is at least 99 percent identical.
But new research is exploring the remaining fraction to explain differences between people of different continental origins.
Scientists, for instance, have recently identified small changes in DNA that account for the pale skin of Europeans, the tendency of Asians to sweat less and West Africans’ resistance to certain diseases.
http://www.nytimes.com/2007/11/11/us/11dna.html?pagewanted=allGIFSoup
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Roots Oceanic wrote: »Roots Oceanic wrote: »Monotremes are evolved from reptiles, emerging around 285 million years ago as mammal-like. These creatures were, like monotremes today, small, mostly nocturnal, and still laid eggs. These animals are represented today not only by the platypus, but the echidna as well.
We can go ahead and answer the question @waterproof has been pressing, transitioning nicely to the topic of mammals evolving from reptiles..
Reptiles are ectotherms (or better known as "cold blooded"). This means that they rely on outside sources for temperature control. This is why lizards lay in the sun for heat. This means that the environment has to be suitable, or the habitats of these creatures have to be tolerable to survive.
As reptiles evolved into mammals, what we call endotherms ("warm blooded"), they gained the ability to regulate body temperature by internal mechanisms as opposed to strictly relying on outside temperature.
So, as reptiles, animals do not need internal functions for temperature regulation because they are dependent on the environment, living where temperature is constantly warm. In freezing weather, they would not be able to survive.
Most likely due to change of temperatures, reptiles adapted by growing hair and evolving temperature regulating ? functions to survive. From there, they evolved into mammals.
It is felt that hair was first evolved in early mammals to help regulate temperatures. The earliest mammals grew these sensory cones between the scales of the evolving reptiles, which, when brushed on objects, gave a stimulus to the brain. Certain remnant scales still exist on rats' tails, armadillo shells and the backs of pangolins. Animal whiskers are still sensory receptacles. Hair is mainly the protein keratin, a form of skin, which is the same material making up the epidermis, feathers, fingernails, horns, hooves and claws. Humans have about 100,000 hairs on our head, while sea otters have 170,000 to 1,000,0000 hairs in their underfur; only one of the otters’ three types of hair. Polar bear hairs have hollow cores. The cores scatter light, making the hairs seem white. Actually, they are colorless. Sunlight passes through the bear's long guard hairs to its black skin, which absorbs the radiation as heat. The inner insulating hair prevents the heat from being radiated back to the air (similar to glass of a greenhouse). Most mammals can cause their hair to become ? , thus increasing the air, (i.e., heat) retention. Although humans have lost most of their body hair, goose bumps are the results of our own relic muscles that still exist which used to control these hairs. White-tailed deer grow winter coats four times thicker than summer coats.
http://www.bobpickett.org/evolution_of_mammals.htm
MAN THAT DIDN'T ANSWER JACK ? about the heating and cooling system in the human body, we can not live with out our heating system and can not live with out our cooling system, they both have to be working at the same time for us to live...
What came first the heating or the cooling that's all i am asking
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LOL.. Ya'll don't have anything better to do? I know it's slow around here but ? .
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LOL.... you know the drill.
Ol' "goose bumps prove evolution" HEAD ASS ?
Proceed -
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waterproof wrote: »What came first the heating or the cooling that's all i am asking
That question has already been answered. All you have to do is scroll up and read. -
You lost that one playboy....
I will give you a chance to redeem yourself -
You're mistaken. You lost for the inability to comprehend your own article. All you would have to do is read my posts in that thread to understand my position now. You're currently on your second try. You're lucky I'm giving you the time of day for a response. You're currently 1 down. You have 2 more attempts to formulate a proper rebuttal.
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Sterile males
In the wild, Drosophila mojavensis and Drosophila arizonae rarely, if ever, interbreed - even though their geographical ranges overlap.
In the lab, researchers can coax successful breeding but there are complications.
Drosophila mojavensis mothers typically produce healthy offspring after mating with Drosophila arizonae males, but when Drosophila arizonae females mate with Drosphila mojavensis males, the resulting males are sterile.
Laura Reed maintains that such limited capacity for interbreeding indicates that the two groups are on the verge of becoming completely separate species.
Because the hybrid male's sterility depends on the mother's genes, the researchers say the genetic change must be recent.
Speculation......
And since you follow Linneaus' classification so rigorously religiously......
Why not follow his human classifications?????
? europaeus (Europeans), ? asiaticus (Asians), ? afer (Africans), and ? americanus, for the original 'Americans.'.....
And my favorite, ? nocturnus(Albinos)....West Alabama wrote:My theory is that whites will become extinct over time.
Your theories seem to fit, However he would suggest that whites would outlast the "evolutionary dead end" that you speak of through natural selection or survival of the fittest.....
And that indigenous people of the world would become "extinct"....
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^^^ Already answered.
1 more attempt. -
You attempted to say that humans were too genetically similar to be classified as differing species.....
Yet you suggest that minor changes in fruit fly and other life forms are???? -
This is the definition of species (check the bolded):
the major subdivision of a genus or subgenus, regarded as the basic category of biological classification, composed of related individuals that resemble one another, are able to breed among themselves, but are not able to breed with members of another species.
Any "race" of human is able to breed with any other and produce fertile offspring. This is because all humans are the same species.
Fruit flies and other lifeforms, on the other hand, are not able to interbreed and produce fertile offspring. This is because there are different species of fruit fly. If one species of fruit fly (or any other lifeform) mates with another species and successfully produces offspring, the offspring will be sterile. This is because they are diffferent species. Only the same species can produce offspring that are fertile. Other times, two different species are so far apart from each other, they are unable to breed altogether. This is how you classify, or differentiate, one species from another.
Now, if a human of the "black" race and a human of the "yellow" (or any other) race were to lie down together and have a child and the child was always sterile, this would make a case for classifiable subspecies in human beings. However, humans are able to mate with one another regardless of "race" and produce fertile offspring.
Another example, you're mixed, from what I understand, with black and white ancestry. If human races were different species, people like yourself would not be able to have children.
The minor changes are genetic and can determine whether one population can interbreed with another. If the genetic change ceases interbreeding between populations, the result is speciation. From that point, the different populations grow apart from each other. -
Roots Oceanic wrote: »
Any "race" of human is able to breed with any other and produce fertile offspring. This is because all humans are the same species.
Exactly....Roots Oceanic wrote: »
Fruit flies and other lifeforms, on the other hand, are not able to interbreed and produce fertile offspring. This is because there are different species of fruit fly. If one species of fruit fly (or any other lifeform) mates with another species and successfully produces offspring, the offspring will be sterile. This is because they are diffferent species. Only the same species can produce offspring that are fertile. Other times, two different species are so far apart from each other, they are unable to breed altogether. This is how you classify, or differentiate, one species from another.
The sexual preferences observed in these experiments are easily eradicated by simply treating fruit flies that had been raised on different diets, with antibiotics. In other words no genetic changes that would ensure irreversible reproductive isolation, and hence speciation, have taken place.
Again....
Where is your new species.........
This would be irrefutable proof for your theory......Roots Oceanic wrote: »This is the definition of species (check the bolded):
the major subdivision of a genus or subgenus, regarded as the basic category of biological classification, composed of related individuals that resemble one another, are able to breed among themselves, but are not able to breed with members of another species.
The minor changes are genetic and can determine whether one population can interbreed with another. If the genetic change ceases interbreeding between populations, the result is speciation. From that point, the different populations grow apart from each other.
However......Charles Darwin wrote: »the sterility of species when first crossed, and that of their hybrid offspring, cannot have been acquired…by the preservation of successive profitable degrees of sterility
As he subsequently noted “it could clearly have been of no advantage to such separated species to have been rendered mutually sterile, and consequently this could not have been effected through natural selection”........
In other words whatever genetic factors had maintained reproductive isolation would have had to have been found purely through chance alone- a blind walk through genetic space in search of those mutations that would prevent reproduction between some individuals and allow reproduction between others.....
VI. THE PRINCIPLE OF CAUSE AND EFFECT.
"Every Cause has its Effect; every Effect has its Cause; everything happens according to Law; Chance is but a name for Law not recognized; there are many planes of causation, but nothing escapes the Law." — The Kybalion.
So since you suggest that natural selection is responsible for this "speciation", bucking the laws of the theory of evolution......
I am wondering why you hold such egalitarian views about humans.....
Has the theory of evolution excluded humans????
You say ? like....Roots Oceanic wrote: »I think Darwins theory and scientific fact go against white supremacy. It is scientific fact that humanity arose from Africa and I believe that the black man is the original man. Although I do not believe that black people are in any way SUPERIOR, as no race in particular is superior over another, I believe that all men came from our Black African ancestors. When you observe nature, you will see. Vitiligo, which causes the skin to turn white.. Albino people who were born with white skin.. These are sorts of "defects" for lack of a better word.
And....Roots Oceanic wrote: »My theory is that whites will become extinct over time.
But that's the same ? white folks say in reverse......
Why should I believe your theory over theirs?????
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Roots Oceanic wrote: »waterproof wrote: »What came first the heating or the cooling that's all i am asking
That question has already been answered. All you have to do is scroll up and read.
Of course, you would have to know that mammals evolved from reptiles and humans are mammals.
Trace the evolutionary line and you will discover the answer to your question.
If you need help, don't be afraid to ask.
? that still didnt answer the ? question, WHAT IN THE ? HAIR and GOOSE BUMPS got to do with the heating and cooling system in the body....A HUMAN CAN BE HAIRY ALL OVER BUT THAT STILL is not going to save a human being...? DONT YOU KNOW the body will overheat with out the cooling system we have, now what in the ? hair and goose bumps going to do to stop the body from overheating...
just say you dont know, and the evolutionist dont know........
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Roots Oceanic wrote: »waterproof wrote: »What came first the heating or the cooling that's all i am asking
That question has already been answered. All you have to do is scroll up and read.
Of course, you would have to know that mammals evolved from reptiles and humans are mammals.
Trace the evolutionary line and you will discover the answer to your question.
If you need help, don't be afraid to ask.
WTF now we came from reptiles that what you trying to say.............? they got your mind, lol......... i heard it all now, not only you believe that you came from apes or ape like creatures but the ape like creatures ancestors are reptiles....WOW -
LOL.... you know the drill.
Ol' "goose bumps prove evolution" HEAD ASS ?
Proceed
), @bambu did roots canal just said that we came from reptiles or some ? -
Goose bumps are a heating adaption in mammals with hair. As is muscle shivering and other metabolic increases to generate heat. (Endothermic systems)
Cooling systems in mammals is generally environmental. Mammals reduce activity during warmer periods. They also will work to increase water evaporation using panting or sweating depending on species.
Why would these present a problem to evolution? -
We are mammals. Mammals arose from reptiles.
Within the grouping of Mammals we belong to the Primates. All primates share a common ancestor with the mammals.
Within the grouping of Primates we belongs to the Apes. All apes share a common ancestor with the primates.
Within the grouping of Apes we are the Hominids. We share a common ancestor with all the apes.
None of this should be surprising to you if you had a Biology class. (and paid attention) -
Goose bumps are a heating adaption in mammals with hair. As is muscle shivering and other metabolic increases to generate heat. (Endothermic systems)
Cooling systems in mammals is generally environmental. Mammals reduce activity during warmer periods. They also will work to increase water evaporation using panting or sweating depending on species.
Why would these present a problem to evolution?
Because Darwinists claim that goose bumps are vestigial.......
And like the majority of evolutionary vestigial remnants.........
Has been proven wrong......
"Goose bumps in humans, however, have taken on a new role. Like flushing, another thermoregulatory mechanism, they have become linked with emotional responses - notably fear, rage or the pleasure, say, of listening to beautiful music. This could serve as a signal to others. It may also heighten emotional reactions: there is some evidence, for instance, that a music-induced frisson causes changes of activity in the brain that are associated with pleasure." -
They are vestigal in humans.
They are tied to fear responses in animals and in humans. But in humans they serve no purpose since they no longer are tied to standing hair on its end to increase size. Same with the response to cold.
Vestigal means that a structure has lost its ancestral function. The Coccyx is vestigal in human since we no longer have a tail however it is still the anchor for some muscles around the pelvis.
You have to use the word it is defined by biology not as you wish it to be defined. -
They are vestigal in humans.
They are tied to fear responses in animals and in humans. But in humans they serve no purpose since they no longer are tied to standing hair on its end to increase size. Same with the response to cold.
Vestigal means that a structure has lost its ancestral function. The Coccyx is vestigal in human since we no longer have a tail however it is still the anchor for some muscles around the pelvis.
You have to use the word it is defined by biology not as you wish it to be defined.
goose bumps = Debunked
"Goose bumps in humans, however, have taken on a new role. Like flushing, another thermoregulatory mechanism, they have become linked with emotional responses - notably fear, rage or the pleasure, say, of listening to beautiful music. This serves as a signal to others and may also heighten emotional reactions: there is some evidence, for instance, that a music-induced frisson causes changes of activity in the brain that are associated with pleasure."
Pineal gland = Debunked
And now for your viewing pleasure.....
Human tailbones = Debunked....
Tailbones???
Dr. Menton corrected the erroneous statements of Darwinian scientists that the human tailbone was a vestigial structure and noted that “all true tails have bones in them that are a posterior extension of the vertebral column. Also, all true tails have muscles associated with their vertebrae which permit some movement of the tail” (Menton 1994). Rather than leaving the reader with the impression that the coccyx has no real function in human beings, Dr. Menton points out “that most modern biology textbooks give the erroneous impression that the human coccyx has no real function other than to remind us of the ‘inescapable fact’ of evolution. In fact, the coccyx has some very important functions. Several muscles converge from the ring-like arrangement of the pelvic (hip) bones to anchor on the coccyx, forming a bowl-shaped muscular floor of the pelvis called the pelvic diaphragm. The incurved coccyx with its attached pelvic diaphragm keeps the many organs in our abdominal cavity from literally falling through between our legs. Some of the pelvic diaphragm muscles are also important in controlling the elimination of waste from our body through the ? ” (Menton 1994).
Next???
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Roots Oceanic wrote: »
Any "race" of human is able to breed with any other and produce fertile offspring. This is because all humans are the same species.
Exactly....
Exactly. So what this:
implies is not true.The sexual preferences observed in these experiments are easily eradicated by simply treating fruit flies that had been raised on different diets, with antibiotics. In other words no genetic changes that would ensure irreversible reproductive isolation, and hence speciation, have taken place.
I'm talking about speciation which is a result of genetic change, not simply a preference, that occurs in nature, which may be possible to reverse (I'm not sure) but whether or not it's reversible does not matter because it still naturally occurs and that's the main issue.whatever genetic factors had maintained reproductive isolation would have had to have been found purely through chance alone- a blind walk through genetic space in search of those mutations that would prevent reproduction between some individuals and allow reproduction between others.....
VI. THE PRINCIPLE OF CAUSE AND EFFECT.
"Every Cause has its Effect; every Effect has its Cause; everything happens according to Law; Chance is but a name for Law not recognized; there are many planes of causation, but nothing escapes the Law." — The Kybalion.
you suggest that natural selection is responsible for this "speciation", bucking the laws of the theory of evolution......
Natural selection is a mechanism of evolution along with genetic drift, migration and mutation.
All of these mechanisms have a cause; I, too, believe in cause and effect.
I'm not sure where you're going with this or how I'm "bucking" the laws of evolution. -
waterproof wrote: »A HUMAN CAN BE HAIRY ALL OVER BUT THAT STILL is not going to save a human being...? DONT YOU KNOW the body will overheat with out the cooling system we have
Humans, as they are now, did not just pop into existence.
http://youtu.be/6PQ6335puOcThis discussion has been closed.