Natman said:
There are two types of changes commonly referred to by the term "evolution". One is "micro-evolution" - change within a species, and the other is "macro-evolution" - change that results in a new species.
An das evidenced by ring species speciation does occur
Natman said:
We see all kinds of examples of "micro-evolution" around us constantly. Examples are the various breeds of dogs, cats, horses etcetera. Although a great dane is physically substantially different from a chihauha, they are both "dogs" and, though difficult, capable of interbreeding to possibly produce third breed of dog. Also, as segments of an established species move about geographically, charactersitics that enhance it's survival become more promenant, such as long hair in colder climates and shorter hair in warmer climates. This produces a wide, but limited variation of characteristics within a species (Mendell's Law), but not new species.
A) define a "cat"
B) explain how ring species do not prove speciation
Natman said:
However, we can not breed a cat and a dog to produce a "cog", "cag","dat" or a "dot". The reason, we have learned in the last 30 odd years, is because of differences in their DNA. A single pair difference in the length of a multi-milliion-pair DNA molecule, like a zipper missing a tooth, can prevent a successful replication.
The hoow does that microevolution occur?
how can a black person and a whiote person breed?
it takes large genomic differences, which do exist between cats and dogs, to cause speciation
Natman said:
The only tool available for "macro-evolution" to work is "mutation", the adding or removing of DNA information.
This is also the only mechanism to allow for micro-evolution, which involves the production of genes non-existant in the original subspecies
Natman said:
In the natural world (outside of the lab), this is a totally random occurance. The problem is that except in the case of single celled organisms, assuming, by some chance, that an entire organism is mutated (a phenominally improbable task in itself),
And entirely unneccesary, as only one germ cell, which goes on to produce offspring, must mutate
Natman said:
there would have to exist another organism that has been mutated EXACTLY in the same manner and in close enough proximaty for them to mate and reproduce, or the new species would die off in it's first generation.
No, a person with the gene for blue eyes can mate with one with the gene for brown, so a difference in one gene will not result in an inability to mate
Natman said:
As far as life on Earth coming about sponaniously from the "primordial slime" (biogenesis), one must consider it's extreme improbability from a mathematical standpoint,
Only if you ignore the natural laws that are involved, and assume that a bacterium must spontaneously form
Natman said:
as well as conflicting conditions required for life to begin and continue in earths atomsphere, even millions of years ago (the Miller-Urey controversy).
Other conditions than those used in Miller-Urey could still allow abiogenisis
Natman said:
Scientists consider odds of 1 in 10 to the 50th (1 followed by 50 zeros) to be "statistically impossible". Mathematician Emile Borel calculated the odds of randomly assembling a 100-amino-acid-string, under perfect conditions, to be 1 in 10 to the 125th.
However the assumption that only one possibility will do, and that the formation must be random make this statistic meaningless
Natman said:
He also calculated the odds of producing a 227-amino-acid-string (the smallest known string for a living organism) at 1 in 10 to the 119,000th. This does not include any of the machinery necessary for replication and cell function.
Once again the assumptions involved make this statistic meaningless
Natman said:
Based on these points, I consider "macro-evolution", "Darwinian evolution", "neo-Darwinian evolution", "punctuated equalibrium" and even "theistic evolution" to be scientifically defunct.
Well you're arguments seem that way to me
Natman said:
Next, one must consider the geologic and fossil evidence. The fossil record indicates a sudden explosion of fully-formed complexed life, with all known species appearing at once (the Cambrian Explosion).
So you are willing ton claim cats have been found in the cambrian?
this is a bigger misconception than most have
Natman said:
We have evidence of certain species becoming extinct, but no new species being generated.
Most species are only found after a certain point in the fossil record, evidence on them having formed
Natman said:
I believe that all of the evidence, when considered as a whole, points to an "Intelligent Designer".
Well when you find some real evidence, tell me
Natman said:
The commonality of organisms (the knee example) point to a "common designer" rather than to a common ancestor, in a similar manner that a hammer might resemble a mallet or a sledge, parts of a car might resemble similar parts on a baby carrage or a jet airliner.
If a submarine was found with suspension from a car, would that be a sensible thing for a designer to do