SH Archive Human Origins: Are We Hybrids?
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I guess, any narrative is possible..
'An international team of scientists extracted DNA from a female platypus, named Glennie, reading all 2.2bn pairs of her genetic "letters". Thought to have begun to diverge from other mammals 170m years ago, the platypus has been regarded as the nearest thing biologists have to a missing link between the earliest reptiles and mammals. It has thick fur and produces milk for its young, yet the females lay eggs and the males produce venom - the only mammals to do so.
The new study, published in Nature, shows the platypus as both evolutionary relic and pioneer. Chris Ponting, at the Medical Research Council's functional genomics unit at Oxford University, said scientists had had the first chance to see if the platypus's weird appearance was reflected in its DNA: "Lo and behold, we saw genes like those in lizards and birds, as well as some like those in other mammals. It has retained many genes other mammals lost from a time when all mammals looked much like lizards.
The fact that the animal has five X and five Y chromosomes is "the weirdest thing about a very weird animal," said Ewan Birney, a co-author on the paper, based at the European Bioinformatics Institute, near Cambridge. "In theory it means there are 25 possible sexes, though in practice that doesn't happen."
Platypus proves even odder than scientists thought | Genetics | The Guardian
DNA similarities
The hidden evolutionary relationship between pigs and primates revealed by genome-wide study of transposable elements
A new study has revealed a potential hidden evolutionary link between pigs and primates. Genetic elements called SINES (short interspersed elements) are usually considered to be ‘junk DNA’, left behind by marauding viruses. However, these elements may hold additional clues about our mammalian evolutionary history.
In humans, the most common SINE is the Alu transposable element, which is derived from the small cytoplasmic 7SL RNA. The latest research has revealed that 7SL RNA is also the original source for a common swine SINE. Just a fluke? Unlikely, according to researchers, who think that this SINE must have had a common origin.
The hidden evolutionary relationship between pigs and primates revealed by genome-wide study of transposable elements
Do you believe in evolution? Hey, we should have a poll.
The term evolution assumes directionality but the latest understanding even within the mainstream, which resonates with me, is that we do not have directionality. There's no development from simple to complex organisms but one constant process of adaptation to the surrounding conditions - natural selection. Like a game of musical chairs.
How did it all start? No-one has any concrete evidence but if we talk about life on this planet only, perhaps an initial intelligent design has some truth in it. He made it and left it to its own devices - Theistic evolution.
Here's an experiment which might suggest that human brain did not actually evolve. It is rather cultivated in one direction or another. The human capabilities seem innate.
Geometry skills are innate, Amazon tribe study suggests
Tribe shows geometry 'is innate'
Everything was once alive and vice versa.
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Or in most basic words, the past is contained within the present, and the present is contained within the future. And this concept includes both devolution and evolution, and this process can be explained in terms of regression and progression of abilities, at least when it comes to the spiritual/biological/psychological development of humanity.
The term evolution is ruined so might think of a new one for these ideas, but they probably already exist. I have never seen any proof of species changing ever has occurred. You can replace everything you read that has evolution in it (especially psychology) with something like, ‘this is the way it’s always been’. Try it.
They are using the term ‘clade’ now, and guess what? It was coined by Julian Huxley.
However there could have hybridization (once again, that’s only evolution in terms of change, but that’s not how everyone understands this word).
So do you guys think hybridization is a good idea, or bad (or whatever terms), especially with pigs? I think it’s bad, but it’s here, and I’m wondering what others think.
oh yes, for some I have thought some people could be getting dogs and cats that are human hybrids, in some way, and not know it. There is some predictive programming about this, too.
Perhaps, the reason is that changes do indeed occur very slowly and we don't live long enough to see them. Unless we deliberately cross two species then it's obvious. Prior to Darwin virtually all evolutionary scientists supported Saltationism which is defined as sudden change from one generation to the next (possibly as a result of environmental pressure).
But we can observe micro-adaptations such as in the case with the saddle tortoises in Galapagos. The first one has shells that rise in front, like a saddle. This adaptation makes it easier for them to lift their heads high to eat tree cactus and to resolve disputes over limited food resources
I’m speechless
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If I may ask: are you suggesting that your example of this branch specific tortoise shows a case of saltationism where one species branches into two where the progeny of both will retain those lines of one adapted and one not? How can we observe such a process as you suggest? Looking at the two shells, I can observe that we are not looking at "micro-adaptions".
I sure think that perceptible changes as saltationism are possible indeed. And changes in our perceptible surroundings do not change gradually and slow as a rule. I think the funda-mentals of any attempt at any such theory is rooted in the "mental" aspect from where the creator starts it's excursion into the visible.
I am not sure I understand your question. In the first paragraph you doubt that changes can be observed but in the second you confirm it. Please, explain.
I used to "be-lie-ve" in evolution but the more I studied it, the more problems it showed to me. They keep moving the goal posts on the "process" of evolution: for instance, it was believed that because of the slow steady change: for example of a tree climbing protobird that would gradually develop longer and longer forearms with feather like growths would be found in abundance in the fossil record. When they were not found they were fabricated by men who be-lie-ved in it. Much of the hoaxes were made by "men who believed" the science of evolution such as the piltdown man which was supposed to be a protohuman a step up from the simian line. Piltdown Man - Wikipedia
I have refused to discuss evolution anymore @s it’s been over 150 years and even today’s tech has nothing new to add. Same old, same old
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I am sorry if it didn't come across clear enough. My question is in the first paragraph however. I will try again.
How do we know that one tortoise species at some point, maybe due to ecological reasons or other, branched in two (or more) tortoise species. What would cause a branch off and at the same time some to not "evolve" the original "ancestor"? These questions can of course be applied to the whole evolution theory.
I think that it is a general perception (and lets not forget that this is all we have and is a mind game) that we see change mostly in a gradual movement in this time-construct. Such as hair turning grey, a fender rusting out etc. However, when it comes to change in and off species, can we state that reality is the observation of micro-adaptions? If we follow that logic then we would see a plethora of branches of species in constant transition and deviation. Say, some human beings where to grow six toes and fingers (and there are some) according to micro-adaption theory, We would see some humans developing broadening of the palm or shrinking of size of the existing fingers to make way for a very slow evolving stump that eventually would grow into the sixth finger?
Could be all so. But just never been convinced by this process. At least examples of such a line of branches or sub-species are unknown to me.
The Galapagos tortoise is a well known and classic case of adaptation and one that is said to have made Darwin think about the evolution. The tortoise used to live on the mainland but migrated to the volcanic island of Galapagos and it had to adapt to the new environment. These tortoises have two very different shapes, each adapted for different feeding habits needed on low, arid islands (dome shaped tortoise) versus high, lusher islands (saddle-back tortoise).
This was still mainstream education during my time at school, this was the late eighties and can remember the class as a TV and video were dragged into the room and they played a bbc docu about this, but it had been proved a hoax in 1953!
The Hybrid Hypothesis: Introduction
My work focuses on hybrids and, particularly, the role of hybridization in the evolutionary process. Here, I report certain facts, which seem to indicate that human origins can be traced to hybridization, specifically to hybridization involving the chimpanzee (but not the kind of hybridization you might suppose!). You can access detailed and documented discussions supporting this claim from the table of contents. But I’ll summarize the basic reasoning here, without a lot of citations and footnotes (see below).
Sheep-pig Hybrids - Mammalian Hybrids - Biology Dictionary
Dog-cow Hybrids - Mammalian Hybrids - Biology Dictionary
Chicken-duck Hybrids: Fact or fiction? - Biology Dictionary
Hybrids could also explain the likes of El Chupacabra?The Hybrid Hypothesis: Introduction
My work focuses on hybrids and, particularly, the role of hybridization in the evolutionary process. Here, I report certain facts, which seem to indicate that human origins can be traced to hybridization, specifically to hybridization involving the chimpanzee (but not the kind of hybridization you might suppose!). You can access detailed and documented discussions supporting this claim from the table of contents. But I’ll summarize the basic reasoning here, without a lot of citations and footnotes (see below).
Sheep-pig Hybrids - Mammalian Hybrids - Biology Dictionary
There exists in some sections of Old Mexico a type of “hog” represented as the product of crossing a ram with a sow, and the term “Cuino” has been applied to this rather violent combination. The ram used as a sire to produce the Cuino is kept with the hogs from the time he is weaned. A resident of Mexico has given the following description of the Cuino: “The sow used to produce the Cuino belongs to any race, but as a rule to the Razor-Back family, which is the more numerous. There is never any difficulty with her accepting the ram when breeding time comes. The progeny is a pig—unmistakably a pig—with the form and all the characteristics of the pig, but he is entirely different from his dam if she is a Razor-Back. He is round-ribbed and blocky, his short legs cannot take him far from his sty, and his snout is too short to root with. His head is not unlike that of the Berkshire. His body is covered with long, thick, curly hair, not soft enough to be called wool, but which nevertheless he takes from his sire. His color is black, white-black, and white-brown and white. He is a good grazer and is mostly fed on grass [Should this trait perhaps be interpreted as the influence of sheep parentage?] with one or two ears of corn a day, and on these he fattens quickly. The Cuino reproduces itself, and is often crossed a second and third time with a ram. Be it what it may, the Cuino is the most popular breed of hogs in the state of Oaxaca, and became so on account of their propensity to fatten on little food.”
Dog-cow Hybrids - Mammalian Hybrids - Biology Dictionary
Chicken-duck Hybrids: Fact or fiction? - Biology Dictionary
Bear-dog Hybrids - Mammalian Hybrids - Online Biology Dictionary
