James gave good general description of the evolution of the eye. I did not know it had happen 40 times independently. I did (and do) know that Petri's God saved his best version for the octopus. Not only is it bigger in proportion to body and absolutely and thus has superior resolution capacity, it is also not so stupidly designed as the human eye. The retina of the human eye is "built backwards"* The photosensitive cells in the human eye only get the light that was not absorbed by the blood vessels which are between them and the incoming light. Not only this, but also all of the nerves, which spread out from the “blind spot”, are interposed in the light path, in two distinct layers. The eye of the octopus is well designed with the photo-sensitive cells up front and the support structure behind. The human eye also lacks the reflective layer behind the photo sensitive cells that double their sensitivity as God did provide for many night active animals, such as all the cats (That reflective layer is why cat’s eyes shine back at you when illuminated by flashlight at night.)
Evolutionists (what silly fools
) say that the difference between human and octopus eyes is because they evolved independently. The God’s truth is either:
(1) God was drunk when designing humans eyes,
OR
(2) God was still learning when designing humans and did not yet have the "eye design" problem well solved. (Obviously, God designed the octopus later.)
OR
(3) God thinks less of the humans than octopus and wanted to clearly show this.
Which do you think it is PetriFB? Or do you have some other explanation?
PS If memory serves me correctly, the Chambered Nautilus is a very old creature (among the complex ones) in the evolutionary scale. Its eye is at that stage of development where the light sensitive pit is deeply recessed and has closed down to make a pin hole camera, but it has no lens, and not even a transparent film covering over the opening (which could confer the benefit of keeping dirt out**, and then could later thicken to form a lens.) That is the sea water fills the interior of the Chambered Nautilus's eye.
I suspect that if humans keep throwing trash in the sea, including oil spills etc, then in a few million years or less the Chambered Nautilus that have survived the trash will at least have a transparent film closing their eye opening. Therefore, the motto for the day is:
Next time you are at the beach, throw some trash in the ocean to push evolution along.
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*Evolution has reason for this, related to fact retina is initially part of the brain and migrates away to its later location, preserving the brain’s general structure etc, but no point in telling this to Petri, because Petri BELIEVES (that God was stupid or drunk, etc.
)
**Until quite recently the deep ocean, where the Chambered Nautilus lives, was very clean and the benefit of a protective film closing the eye was not worth the biological cost of evolving it. Any Chambered Nautilus that made this evolutionary step in eye development was selected against, but if we all throw more trash in the ocean, we can help them along! DO YOUR PART. :bugeye:
James:
Did you know that among the 40 different versions of eyes that have evolved there is a small (flea sized, I seem to recall) creature that has only a single photo sensitive cell in each of its eyes? This cell is on a small flexible stalk inside the eye and there are minute mussels attached that can move the sensitive cell around inside the eye. The creature literally scans the image by moving the sensitive cell around!
Glad the early ancestors of man went down the multiple-cell retina path instead, aren't you?