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originally posted by: kcgads
Nothing explains how you repeatedly get the SAME accidental mutation. Why do eyes always get the same exact mutations? Everyone keeps ignoring this. I understand that natural selection would keep a good mutation, if it helps an organism adapt to it's environment. What I don't get is the same exact mutation happening time and time again. Everyone keeps saying "natural selection isn't random" and thinks that's an explanation. Well, it's not. It doesn't explain the mutation itself.
originally posted by: Autorico
Is there any reason a deity couldn't have created us through evolution?
originally posted by: kcgads
originally posted by: Ghost147
a reply to: kcgads
I think eyes are inevitable, yes.
originally posted by: kcgads
originally posted by: Ghost147
a reply to: kcgads
" Eyes, specifically, are relatively simple to form and progress"
Why? Why is a mutation causing a patch of photosensitive cells or a mutation causing a lens relatively simple to form? They are accidents.
originally posted by: kcgads
originally posted by: Ghost147
a reply to: kcgads
They are so relatively simple to accidentally form that it happened 40 times in nearly the same way. Why? Why would a cup always start forming under the photosensitive cells? Why does the lens always "accidentally" mutate and form exactly in just the right spot to be useful for vision?
Birds are thought to have evolved from dinosaurs, but have very different jaws. Bird-like dinosaurs such as the velociraptor have two bones at the tip of their upper jaws. In birds, those bones are fused to form a beak.
By blocking two proteins that are activated when chicken embryos grow their beaks, U.S. researchers caused their jaws to "revert" to a velociraptor-like snout. The changes were observed in chick embryos that developed until they were close to hatching.
To their surprise, the birds' palates, on the roof of their mouths, also became dinosaur-like.
"This was unexpected and demonstrates the way in which a single, simple developmental mechanism can have wide-ranging and unexpected effects," said Bhart-Anjan Bhullar, lead author of the study, in a statement from Yale University.
To date, it has been correct on just about everything that science has subsequently discovered.
originally posted by: Ghost147
originally posted by: kcgads
originally posted by: Ghost147
a reply to: kcgads
I think eyes are inevitable, yes.
You're starting to confuse me. In some posts you accept that some mutations are inevitable, and in others you're making it seem as though you believe all mutations are inevitable. Then you agree that some things aren't accidental and some are, and now in this most recent post you're forgetting what we touched upon earlier about the accidental mutations of photosensitive cells, and the inevitability of further complexity thereafter.
I now don't really know what you are and aren't having an issue with. It seems to change per post. Perhaps it's a misunderstanding of previous information that some of the comments here have?
originally posted by: kcgads
originally posted by: Ghost147
a reply to: kcgads
" Eyes, specifically, are relatively simple to form and progress"
Why? Why is a mutation causing a patch of photosensitive cells or a mutation causing a lens relatively simple to form? They are accidents.
The first mutation that then caused successive mutations that further formed a complex organ is most definitely accidental. Many people here have explained that it is a number of times. However, anything that furthers that specific first-mutation once it has formed is always inevitable. Why? Because Evolution has a pattern to it. If a mutation is beneficial, and it alters the way an organism functions, that new functionality due to that mutation will always lead to further complexity and specialization within that mutation. If that mutation turns out not to be beneficial, it will either lay dormant or it will be breed out of successive generations.
Photosensitive cells are accidents, but those cups, those specialized eyes, they are all inevitable mutations due to the allowance for change in that species' behavior thanks to those photosensitive cells that were formed accidentally and subsequently selected for by natural selection.
originally posted by: kcgads
originally posted by: Ghost147
a reply to: kcgads
They are so relatively simple to accidentally form that it happened 40 times in nearly the same way. Why? Why would a cup always start forming under the photosensitive cells? Why does the lens always "accidentally" mutate and form exactly in just the right spot to be useful for vision?
I think you're conceiving the terms "Accidental" and "Inevitable" and the wrong way. Again, anything after that initial (and accidental) mutation of photosensitive cells is not an accident. The successive evolution of those photosensitive cells is inevitable if the organism that had that photosensitive cell mutation has a change in their behavior due to that mutation. That mutation allows them to do things they previously couldn't, there for it is no accident that we see that mutation evolve further and be more specialized due to the new environments it can now use to it's benefit and natural selection.
Correct me if I'm wrong, but it appears as though you believe there's these set amounts of mutations after the photosensitive cells form. The image I posted earlier is the evolution of a specific type of eye. It is not the same path that every type of eye took in order to be at it's form right now. Evolution is always branching, never linear. This is due to how a mutation specializes for specific environments:
The term "inevitability" we use is not that a photosensitive cells will inevitably form a cup, but that they will inevitably evolve further into more complex organs, so long as the organism continues to have a need for it.
Whether one considers the eye to have evolved once or multiple times depends somewhat on the definition of an eye. Much of the genetic machinery employed in eye development is common to all eyed organisms, which may suggest that their ancestor utilized some form of light-sensitive machinery – even if it lacked a dedicated optical organ. However, even photoreceptor cells may have evolved more than once from molecularly similar chemoreceptors, and photosensitive cells probably existed long before the Cambrian explosion.[11] Higher-level similarities – such as the use of the protein crystallin in the independently derived cephalopod and vertebrate lenses[12] – reflect the co-option of a protein from a more fundamental role to a new function within the eye.[13]
Shared traits common to all light-sensitive organs include the family of photo-receptive proteins called opsins. All seven sub-families of opsin were already present in the last common ancestor of animals. In addition, the genetic toolkit for positioning eyes is common to all animals: the PAX6 gene controls where the eye develops in organisms ranging from octopuses[14] to mice to fruit flies.[15][16][17] These high-level genes are, by implication, much older than many of the structures that they are today seen to control; they must originally have served a different purpose, before being co-opted for a new role in eye development.[13]
Sensory organs probably evolved before the brain did—there is no need for an information-processing organ (brain) before there is information to process.[18]
I'm just wondering why you are using the O&C as a platform to promote Hylozoics
So, you're just going to paste your own words on a science diagram and claim you made some kind of point?
I didn't think Hylozoic fundamentalists could exist, because enlightenment seems to be the exact opposite of your attitude toward science and your invalid generalizations about scientists
For the 3rd time, each mutation was INDIVIDUALLY beneficial at EACH stage of development. It didn't just evolve a lens or rod because it would help see in the future. They evolved because EVERY STEP of the process was beneficial, not just the end result. I have to wonder if you are even reading the posts
You make a post like this and whine about how you're offended that others feel you come off as arrogant and condescending? Bravo Mr. Hypocrite! Thanks for demonstrating that you've never been interested in an actual discussion or debate, just pushing your own agenda devoid of any actual evidence. Your arrogance is pathetic and disgusting and utterly devoid of anything resembling civility. Best of luck with that in the future
Nope, it's just obvious to the rest of the members that your disposition is that of what it is.
originally posted by: kennyb72
it would appear that the blueprint called for vision, and thats not just plain old vision, but stereoscopic vision at that, Why two eyes common across all species when one eye would most definitely suffice? Going by evolutionary reasoning, all early life forms would have developed one eye until the need for 3 dimensional vision became an advantage.
What real benefit for a ground based bug to develop stereoscopic vision, not to mention the wiring in its head or whatever, that must bring both sensors into focus, and into focus on what? if it has no awareness.
We are expected to believe, not just one species found two eyes beneficial through accidental mutation or natural selection, but all of them. The other thing that is interesting is the symmetry of life, being equal on both sides of it's body and the function of two ears, why? all developing independently of each other with the same characteristics.
The argument that vision must have been limited to detecting light and dark for tens of thousands of years before evolving into something more useful is not supported by logic. Two eyes have developed over vast amounts of time until it eventually revealed that it was worth the effort as the world gradually grew into focus.
"Jeez, I new those cones and rods and a clear lens with a retina would come in useful one day. In fact it's so useful I don't know how I ever survived without them". Me neither mate!
Again what advantage is having stereoscopic light grey and dark non vision. Evolutionists always gloss over details like this and try to make a nonsensical story fit, it but they all add up to one big question mark in my view.
The visual advantages that humans have as a result of stereoscopic vision are most obvious when compared to someone who doesn't have this ability, because he has lost the use of an eye, for instance. These individuals can make certain adjustments to account for the loss of depth perception, but it is largely impossible to regain all of what has been lost, regardless of these adaptations. Stereoscopic vision is also related to our ability to manipulate small objects with our hands. Similarly, some woodland animals use it to precisely navigate through branches and other forest environments where accurate depth perception is a matter of survival.
Because it is much more at home here than evolution theory is, go get your own forum instead of invading other peoples. ORIGINS AND CREATIONISM get it origins as in origins of life and creationism as in a creator. And don’t use the lame argument about origins of species. Origins has no place in evolution theory as you regularly remind me.
Go on, Shoo, clear off vamoose, until you learn to respect others views, as we will yours if we ever enter into the evolutionists forum.
You make it sound as though I have burned a copy of CD's Origin and Species, did it offend you fundamentalist evo-boys? I have a guilty secret, I drew a cartoon of Charles Darwin last night in stockings and suspenders.
Hylozoic fundamentalists don't exist, it all appears to be part of your own persecution complex which could probably be fixed up by taking regular walks.
I wonder if you actually give any thought to what you post rather than just read it and accept it as gospel.