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johnmuise's site said:Hello, My name is John as you probably guessed because your so smart...
JohnMuise's site said:Generally passed off as Irreducible complexity by the evolution theorists because they can’t explain it, numerous have tried but all fail, it’s obvious the eye was designed.
Darwin explained how the eye evolved in the Origin of Species in the 1850'
johnmuise said:Darwin explained how the eye evolved in the Origin of Species in the 1850'
really wow this guy is good, becuase the time i checked no one knew how it evolved, in fact i think darwin himself disblived it
Charles Darwin said:if numerous gradations from a perfect and complex eye to one very imperfect and simple, each grade being useful to its possessor, can be shown to exist; if further, the eye does vary ever so slightly, and the variations be inherited, which is certainly the case; and if any variation or modification in the organ be ever useful to an animal under changing conditions of life, then the difficulty of believing that a perfect and complex eye could be formed by natural selection, though insuperable by our imagination, can hardly be considered real.
Patashu said:OK, evolution of the eye.
Let's propose that at some point an organism gained a mutation that created a photosensitive patch of tissue. This patch, while insensitive and unrefined, can be used to differentiate between light and shade; it can detected the presence of night time, shelter or a predator overhead. By using this simple detector a slight advantage over similar creatures without this very basic eye can be achieved. (Note that this would not be a positive mutation in an environment that does not recieve much light, ie deep sea or in a cavernous system)
Positive mutations to enhance the features of such an eye would be an increase in sensitivity of the tissue, cupping the photosensitive surface inwards so it catches more area and can determine direction of incoming light just like ours does, covering it with a protective transparent layer...these all help to enhance the use of such an eye.
This image goes through it pretty well:
http://upload.wikimedia.org/wikipedia/c ... lution.svg
So does the video if you wish to watch:
http://www.youtube.com/watch?v=lEKyqIJkuDQ
(yes, I know, it's Dawkins but this is the current theory on eye evolution)
I believe jwu already covered this. IIRC, he said that skeletons evolved around the eye which had already formed.johnmuise said:Patashu said:OK, evolution of the eye.
Let's propose that at some point an organism gained a mutation that created a photosensitive patch of tissue. This patch, while insensitive and unrefined, can be used to differentiate between light and shade; it can detected the presence of night time, shelter or a predator overhead. By using this simple detector a slight advantage over similar creatures without this very basic eye can be achieved. (Note that this would not be a positive mutation in an environment that does not recieve much light, ie deep sea or in a cavernous system)
Positive mutations to enhance the features of such an eye would be an increase in sensitivity of the tissue, cupping the photosensitive surface inwards so it catches more area and can determine direction of incoming light just like ours does, covering it with a protective transparent layer...these all help to enhance the use of such an eye.
This image goes through it pretty well:
http://upload.wikimedia.org/wikipedia/c ... lution.svg
So does the video if you wish to watch:
http://www.youtube.com/watch?v=lEKyqIJkuDQ
(yes, I know, it's Dawkins but this is the current theory on eye evolution)
so before they had this light sensitive patch what did they do ?
also take into consideration that not one skeleton has been found that did not have eye sockets, indicating the eyes were always there.
*sigh* I do recall giving you a list.i have yet to see a mutation or evolutionary process add information to the genome, just alter existing code.
'Fraid I don't know. If someone wants to jump in here that'd be great.so were in the fossil record are the transitions from eyeless to eyes ?
Learn the defintion of a theory in a scientific context!Its nice to present a theory but no zero evidential weight a theory is as far as it goes when it comes down to the eyes.
again zero evidence.I believe jwu already covered this. IIRC, he said that skeletons evolved around the eye which had already formed.
link again sorry, so many topics going at once i must have missed it.*sigh* I do recall giving you a list.
i do believe there arnt any, but if someone wants to show me that would really put a wrench i nmy gears'Fraid I don't know. If someone wants to jump in here that'd be great.
hypothesis: a tentative theory about the natural world, Hmm how can one have an educated guess on something never seen or can be tested, you can't there is no education there, all you have is a guess.Learn the definition of a theory in a scientific context!
Let's make this clearer. Are we talking about a skeletal eye socket, or the shallow recess of photosensitive cells? Assuming you're talking about the skeletal one, it could have developed from protective tissue or something. I really don't know.johnmuise said:again zero evidence.I believe jwu already covered this. IIRC, he said that skeletons evolved around the eye which had already formed.
link again sorry, so many topics going at once i must have missed it.[/quote:e76ef][quote:e76ef]
*sigh* I do recall giving you a list.
Turns out they appeared in the Cambrian Explosion. Fossil record supports this.[quote:e76ef]
'Fraid I don't know. If someone wants to jump in here that'd be great.
i do believe there arnt any, but if someone wants to show me that would really put a wrench i nmy gears
hypothesis: a tentative theory about the natural world, Hmm how can one have an educated guess on something never seen or can be tested, you can't there is no education there, all you have is a guess.[/quote:e76ef][/quote:e76ef][quote:e76ef]
Learn the definition of a theory in a scientific context!
skeletal eye socket mostly.Let's make this clearer. Are we talking about a skeletal eye socket, or the shallow recess of photosensitive cells? Assuming you're talking about the skeletal one, it could have developed from protective tissue or something. I really don't know.
Information can be found here: http://www.talkorigins.org/faqs/mutations.html
Make sure to read some of it so you don't repeat arguments that have already been defeated.
Turns out they appeared in the Cambrian Explosion. Fossil record supports this.
A hypothesis is a "guess" based on observation. This can then be tested.
It turns into a theory if it survives repeated testing. Note that a theory is usually VERY WELL SUPPORTED
Not see shade/darkness/a predator above them. Life can exist without sight; there is smell, hearing, heat and touch to work off of.johnmuise said:Patashu said:OK, evolution of the eye.
Let's propose that at some point an organism gained a mutation that created a photosensitive patch of tissue. This patch, while insensitive and unrefined, can be used to differentiate between light and shade; it can detected the presence of night time, shelter or a predator overhead. By using this simple detector a slight advantage over similar creatures without this very basic eye can be achieved. (Note that this would not be a positive mutation in an environment that does not recieve much light, ie deep sea or in a cavernous system)
Positive mutations to enhance the features of such an eye would be an increase in sensitivity of the tissue, cupping the photosensitive surface inwards so it catches more area and can determine direction of incoming light just like ours does, covering it with a protective transparent layer...these all help to enhance the use of such an eye.
This image goes through it pretty well:
http://upload.wikimedia.org/wikipedia/c ... lution.svg
So does the video if you wish to watch:
http://www.youtube.com/watch?v=lEKyqIJkuDQ
(yes, I know, it's Dawkins but this is the current theory on eye evolution)
so before they had this light sensitive patch what did they do ?
Not one skeleton of what?also take into consideration that not one skeleton has been found that did not have eye sockets, indicating the eyes were always there.
Define 'information'. What does it measure, what are its units, how is it determined and measured and what does it signify?i have yet to see a mutation or evolutionary process add information to the genome, just alter existing code.
I Am Not A Paleontologist, but I'll snoop around and see what I can find.so were in the fossil record are the transitions from eyeless to eyes ?
Why do you not consider evidence you have not yet seen? Have you scoured the entire scientific body of knowledge and yet found no examples? Have any science degrees? It's one thing to say you haven't seen the evidence but you can't conclude there is none from this.Its nice to present a theory but no zero evidential weight a theory is as far as it goes when it comes down to the eyes.