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The thing is, cross species fertilization rarely happens, and when it does, the offspring in all known cases is infertile. To produce a highly superior genetic makeup is statistically impossible.
Originally posted by Knives4eyes
reply to post by Mizzijr
I don't understand the full metal alchemist reference, if this wasn't sarcastic then you're welcome.
There's more but I'll save it for a more theological thread.
Originally posted by kdog1982
Originally posted by HairlessApe
reply to post by kdog1982
Humans came from Chimps....
....Said no scientist ever.
It is a general hypothesis...a split in the tree.
The chimpanzee is plausible in the role of one of parents that crossed to produce the human race because they are generally recognized as being closest to humans in terms of their genetics (here, I use the term (chimpanzee loosely to refer to either the common chimpanzee or to the bonobo, also known as the pygmy chimpanzee; the specific roles of these two rather similar apes within the context of the present hypothesis will be explained in a subsequent section). But then the question arises: If an ancient cross between the chimpanzee and some parental form "X" produced the first humans, then what was that parent? Does it still exist? What was it like?
Ever since researchers sequenced the chimp genome in 2005, they have known that humans share about 99% of our DNA with chimpanzees, making them our closest living relatives. But there are actually two species of apes that are this closely related to humans: bonobos (Pan paniscus) and the common chimpanzee (Pan troglodytes). This has prompted researchers to speculate whether the ancestor of humans, chimpanzees, and bonobos looked and acted more like a bonobo, a chimpanzee, or something else—and how all three species have evolved differently since the ancestor of humans split with the common ancestor of bonobos and chimps between 4 million and 7 million years ago in Africa. The international sequencing effort led from Max Planck chose a bonobo named Ulindi from the Leipzig Zoo as its subject, partly because she was a female (the chimp genome was of a male). The analysis of Ulindi's complete genome, reported online today in Nature, reveals that bonobos and chimpanzees share 99.6% of their DNA. This confirms that these two species of African apes are still highly similar to each other genetically, even though their populations split apart in Africa about 1 million years ago, perhaps after the Congo River formed and divided an ancestral population into two groups. Today, bonobos are found in only the Democratic Republic of Congo and there is no evidence that they have interbred with chimpanzees in equatorial Africa since they diverged, perhaps because the Congo River acted as a barrier to prevent the groups from mixing. The researchers also found that bonobos share about 98.7% of their DNA with humans—about the same amount that chimps share with us.
news.sciencemag.org...
Key word is living relative.edit on 6-7-2013 by kdog1982 because: (no reason given)
Originally posted by Mizzijr
Originally posted by Knives4eyes
reply to post by Mizzijr
I don't understand the full metal alchemist reference, if this wasn't sarcastic then you're welcome.
There's more but I'll save it for a more theological thread.
Nah, it wasn't sarcastic at all. In FMA there are quite a few things the author put into the book that was mysterious and actually had truth to it. Chimeras might have been one of those things, I just never got around to it.
If we step away from the highly emotional topic of human origin and consider the work that this proposal has been based upon, we see that McCarthy's conclusions are nothing short of explosive. They will shake the very foundations of evolutionary theory. McCarthy is playing the role of mythbuster. First he is destroying the widely held belief that species only mate with their own kind. He shows that in the plant and aquatic kingdoms where gametes are broadcast upon the currents, then hybridisation is de rigueur. He demonstrates with many examples, that within the bird kingdom where mating is necessary, again, cross species fertilisation is commonplace in hybridisation zones and he even demonstrates the hybrid parentage of several species. In his latest work - Mamalian Hybrids - he again shows commonplace examples of cross species mating and the establishment of populations of F1 hybrids. It seems the belief that species only breed 'like with like' is a uniquely human fiction. Read more at: phys.org...
Second, he is destroying the widely held belief that hybrids are sterile. The F1 hybrid is a unique state in that it is a life form which contains two genomes, a copy from each parent. The resultant creature often demonstrates this duality by being part one parent and part the other - head and feet of one parent, body of the other, forebody one parent, hindbody the other - they are chromosomal chimeras, strong and vigorous, but with an inbuilt issue. When the F1 attempts to create its gametes, the process of meiosis splits the two parental genomes apart and attempts to pair up the mismatching halves. The mismatch causes the meiosis machinery to create a storm of change and mutation with the consequence that a large proportion of non viable gametes will be produced. Many will fail to be fertilised, those that do fertilise will produce a proportion of 'monsters' that fail to survive, only a small proportion will be capable of forming a totally new viable life form. Read more at: phys.org...
Finally, McCarthy has given us Stabilisation Theory - the process by which the newly formed hybrid with its low fertility and tumultuous genome, rapidly (in geological time scales) becomes a species. Natural selection inexorably eliminates the less advantageous genomic variants while retaining any mutations which proffer reproductive advantage. Genetic variability is quickly eliminated and a highly fertile stabilised 'species' is formed, which, due to the absence of inherent genetic diversity, remains essentially unchanging for potentially millions of years. We have all been brought up to the mindset that cross species sex is an abomination and that evolution is a continual process of refinement to perfection, pandering to our arrogance that we occupy that pinnacle. Read more at: phys.org...
But those of you who are thinking instead of dismissing this new perspective, will be coming to the realisation that natural selection and the production of species is in fact the road to extinction. Those species which give up genetic diversity in favour of fertility, are exposing themselves to the inevitable fate of eventual extinction. The very opposite of classical Darwinian thinking. Read more at: phys.org...
Originally posted by HairlessApe
reply to post by kdog1982
Fair enough.
Admittedly I find the idea quite intriguing as well... It's easy to see how someone could draw a conclusion like this using "common sense" as their logic. Who knows, maybe we actually will discover something completely unprecedented.
Because of the early divergence from the therian mammals and the low numbers of extant monotreme species, the platypus is a frequent subject of research in evolutionary biology. In 2004, researchers at the Australian National University discovered the platypus has ten sex chromosomes, compared with two (XY) in most other mammals (for instance, a male platypus is always XYXYXYXYXY),[66] although given the XY designation of mammals, the sex chromosomes of the platypus are more similar to the ZZ/ZW sex chromosomes found in birds.[67] The platypus genome also has both reptilian and mammalian genes associated with egg fertilisation.[35][68] Since the platypus lacks the mammalian sex-determining gene SRY, the mechanism of sex determination remains unknown.[69] A draft version of the platypus genome sequence was published in Nature on 8 May 2008,revealing both reptilian and mammalian elements, as well as two genes found previously only in birds, amphibians, and fish. More than 80% of the platypus' genes are common to the other mammals whose genomes have been sequenced.[35]
Originally posted by HairlessApe
Originally posted by Mizzijr
Originally posted by Knives4eyes
reply to post by Mizzijr
I don't understand the full metal alchemist reference, if this wasn't sarcastic then you're welcome.
There's more but I'll save it for a more theological thread.
Nah, it wasn't sarcastic at all. In FMA there are quite a few things the author put into the book that was mysterious and actually had truth to it. Chimeras might have been one of those things, I just never got around to it.
Yes, I'm sure the authors, illustrators, and editors of an anime series have knowledge of our secret genetic past far beyond the comprehension of the average layman.
Originally posted by dominicus
Who says it would have happened naturally? Ancient alien theorist's say an advanced race came and made us.
Originally posted by rhinoceros
Originally posted by dominicus
Who says it would have happened naturally? Ancient alien theorist's say an advanced race came and made us.
I'm saying it didn't happen since there's no genetic evidence whatsoever that it did, which would not be the case if it really did happen. So einfach ist das. Show me at least one tree from here that places humans and pigs in the same terminal node. Nah, let's just ignore the evidence and continue with the fantasy ATS style..edit on 8-7-2013 by rhinoceros because: (no reason given)
Originally posted by watchitburn
It kind of sounds reasonable.
Take the duck billed platypus for example.
How anyone could look at this furry little mess and not get a shadow of a doubt, that ancient genetic manipulation might sound plausible is beyond me.
Originally posted by dominicus
Originally posted by rhinoceros
Originally posted by dominicus
Who says it would have happened naturally? Ancient alien theorist's say an advanced race came and made us.
I'm saying it didn't happen since there's no genetic evidence whatsoever that it did, which would not be the case if it really did happen. So einfach ist das. Show me at least one tree from here that places humans and pigs in the same terminal node. Nah, let's just ignore the evidence and continue with the fantasy ATS style..edit on 8-7-2013 by rhinoceros because: (no reason given)
And where does the tree, or all the tree's, in that link start?
There's a lot we still don't know. The whole of junk DNA is still not understood yet is entirely relevant because scientists are starting to discover that some aspects of junk DNA are relevant to diseases and other bodily functions.
What about the jump from cave-men to modern day humans? The missing link ....etc...
A master genetic manipulator can manipulate things in such a way, that it's not necessarily going to show up in ways that you think. So many unknowns existedit on 10-7-2013 by dominicus because: (no reason given)
HairlessApe
Originally posted by kdog1982
Originally posted by HairlessApe
reply to post by kdog1982
Humans came from Chimps....
....Said no scientist ever.
It is a general hypothesis...a split in the tree.
The chimpanzee is plausible in the role of one of parents that crossed to produce the human race because they are generally recognized as being closest to humans in terms of their genetics (here, I use the term (chimpanzee loosely to refer to either the common chimpanzee or to the bonobo, also known as the pygmy chimpanzee; the specific roles of these two rather similar apes within the context of the present hypothesis will be explained in a subsequent section). But then the question arises: If an ancient cross between the chimpanzee and some parental form "X" produced the first humans, then what was that parent? Does it still exist? What was it like?
Ever since researchers sequenced the chimp genome in 2005, they have known that humans share about 99% of our DNA with chimpanzees, making them our closest living relatives. But there are actually two species of apes that are this closely related to humans: bonobos (Pan paniscus) and the common chimpanzee (Pan troglodytes). This has prompted researchers to speculate whether the ancestor of humans, chimpanzees, and bonobos looked and acted more like a bonobo, a chimpanzee, or something else—and how all three species have evolved differently since the ancestor of humans split with the common ancestor of bonobos and chimps between 4 million and 7 million years ago in Africa. The international sequencing effort led from Max Planck chose a bonobo named Ulindi from the Leipzig Zoo as its subject, partly because she was a female (the chimp genome was of a male). The analysis of Ulindi's complete genome, reported online today in Nature, reveals that bonobos and chimpanzees share 99.6% of their DNA. This confirms that these two species of African apes are still highly similar to each other genetically, even though their populations split apart in Africa about 1 million years ago, perhaps after the Congo River formed and divided an ancestral population into two groups. Today, bonobos are found in only the Democratic Republic of Congo and there is no evidence that they have interbred with chimpanzees in equatorial Africa since they diverged, perhaps because the Congo River acted as a barrier to prevent the groups from mixing. The researchers also found that bonobos share about 98.7% of their DNA with humans—about the same amount that chimps share with us.
news.sciencemag.org...
Key word is living relative.edit on 6-7-2013 by kdog1982 because: (no reason given)
A "living relative" is not an ancestor. We DO NOT come from chimps. We share a common ancestor. They aren't even close to the same thing. And no, it's not a legitimate hypothesis, it's some guy's blog. I think his colloquial (not to be confused with scientific) theory is really neat but I don't think it holds much credibility.edit on 7-7-2013 by HairlessApe because: (no reason given)