Of course it accounts for it, so there's no flaw. Once H. sapiens was a separate species, it doesn't matter if it bred with "earlier" species ... by definition of the word 'species' (i.e. the very definition of 'Homo sapiens'), they would NOT have produced viable offspring, and therefore their descendants would not exist today.
Perhaps you are asking if a *precursor* to Homo sapiens (let's call them P1) may have been interbreeding with the *precursors* to other species (call them P2) while P1 and P2 were still capable of interbreeding (still the same species).
Well, the theory of evolution tells us that one of two things happened.
1. Either all P1's were completely isolated from P2's so no interbreeding occurred at all. (E.g. the populations of P1's got geographically separated from all populations of P2's long enough for genetic incompatibility to arise). OR
2. Those few P1's and P2's who were still interbreeding, just produced some bloodlines that died out. (Bloodlines die out *all the time*. In fact, the vast majority of bloodlines die out.)
Either way, there are no modern day descendants of P1/P2 interbreedings (bloodlines) alive today. That's all.
That's how species are born. Two populations get genetically isolated from each other, and are therefore free to evolve separately. Those few members from the two populations (if any) who, in the early days of separation, do manage to interbreed, produced no bloodlines that happened to survive very long.
It's really not that complicated.
2006-09-05 15:15:05
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answer #1
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answered by secretsauce 7
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They must have bred with much lower forms of life. Just look around you. Read some of these questions. That's my evidence that Homo Sapiens is not as sapiens as supposed. by the way I'd better mention that sapiens means intelligent, because I'm sure some won't understand.
As for flaws in the theory of evolution, I can't think of any. It's been explained in detail, with tons of evidence and fossils to back it up. If there is any other way to explain how we got here, I havn't come across anything remotely convincing.
I know the church claims God mumbo-jumboed and there it all was. Not only life on the thin surface, but the whole earth and universe. Hocus-pocus -- - there it is. Great very logical.
2006-09-05 13:57:26
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answer #2
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answered by Anonymous
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The T.o.E has little to do with homo sapien evolution.
Whether humans evolved from apes or fish, it is irrelavent in the sense that evolution is not weighted by the accuracy of human understanding of our own evolution.
Genetically and scientificaly the theory is sound. There are no flaws of which I am aware.
2006-09-05 14:36:34
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answer #3
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answered by Anonymous
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well yeah there is a missing link that they have yet to find. plus the fossil record shows a decrease in specie since the beginning. and we have yet to see any benificial mutations and most are the reduction of information (DNA) the best example of additions is the trisomy's type trisomy into yahoo and see how many numbers there are associated with it. 16, 21, 13, and 18. 16,13, and 18 are fatal it seems and trisomy 21 is the clinical term for down syndrome. but there are others that seem to be functional like XYY males or XXY males these tend to be functional but with a double y you are highly likely to end up on death row for commiting henous crimes. and with a reuction of information i dont know of any off the top of my head that even survive. there might be X females but i am not sure.
with all of these little holes it tends to look like there is little use for the current evolution theory i think some changes need to be made
2006-09-05 13:51:02
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answer #4
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answered by gsschulte 6
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This interbreeding is postulated, but is not known with certainty at the present time.
Basically, neaderthal was very well-adapted for survival in cold climates and "stealth" hunting in heavily forested environments.
"Modern" man was far better adapted to wamer environments and surviving and running in open plains.
With a climate shift, it is thought that neaderthal populations were not well-adapted to survival as the ice age came to an end.
As for the bible, there's no scientific evidence for it.
2006-09-06 02:24:28
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answer #5
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answered by Anonymous
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There is a lot of postulation about whether this happened. So far scientists don't have enough evidence to confidently say whether or not it happened, especially amongst our ancestors. (it may have also happened amongst sub-species that died out.)
2006-09-05 13:45:47
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answer #6
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answered by Jim S 5
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I think that it was because of snakes on a plane....E
2006-09-05 13:43:55
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answer #7
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answered by yahoooo reject 3
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read the bible dude.
2006-09-05 13:50:48
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answer #8
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answered by enigmatic_whisperings 1
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