heres a question with this whole evolution thing?

Question

it took many many years to evolve from microscopic to our present selves. i coulnd't imagine an eyeball evolving over only a couple hundred generations? when our bodies first started developing eyeballs, i can't see them working for these first generations. why would our body keep evolving them over a long period of time. i can't see our body knowing that it would become an eye after a 1000 years. wouldn't our body have started to spit it out if it didn't work after a couple of generations?

Answer 1

The idea that simpler eyes are not-useable is demonstrably wrong: There are creatures who have no eyes but are merely light sensitive; creatures who have light senstive spots, who have light sensitive pits, who have covered light sensitive pits, etc.


In fact, a complete hypothetical evolutionary pathway, generation by generation, for the evolution of an eye has been demonstrated:

http://www.don-lindsay-archive.org/creation/eye_time.html

Such a pathway of steps - fully functional at all points - takes 1829 steps, which could be completed in approximate 350,000 generations, which could take less than 400,000 years.

That's a rather short time in the history of the Earth.

Answer 2

Perhaps you are looking at this question with the wrong perspective. Microscopic life forms do not have organs. Your argument about eyes is like saying that mammals should not have hearts because bacteria do not have hearts.

In terms of "this whole evolution thing" some very simple microorganisms have sensitivity to light and some do not. In multicellular life forms, some have certain cells which are sensitive to light and some do not.

If one studies more complex life forms, cells which react to light can be as different as plant leaf cells which can photosynthetically produce carbohydrates to the human eye which can differentiate most of the visible spectrum in the daylight and yet also resolve images in low levels of light at night.

It is not a matter of a completed large scale organism suddenly "growing" an eye. Any possible steps completed over millions of years can be reflected in looking at the differences in light sensitive organs in currently living life forms. There seems to be a progression.

If you personally study the types and structures of light sensitive cells and organs occurring in life forms on the earth, you would have a better idea of how this process could have taken place. Many current arguments for and against "evolution" are based on a lack of understanding of the data.

Answer 3

Evolutionary time is measured in millions and billions of years. This span of time is essentially unimaginable for us, because our lives and history are so extremely short by comparison. If you really want to understand evolution, read any of Richard Dawkin's books; he's probably the best at explaining it. I'd suggest "The Blind Watchmaker" as a good start, because it specifically talks about eyes (which evolved independently in the animal kingdom anywhere between 40 and 60 times).

Answer 4

Its a good question and it dwindles my faith sometimes in the theory of evolution. But if you look at it in this way that your eyeball was actually only a sensory bud when you were a unicellular organism, then it gets a little easier if not much.

It was necessary for our survival that we should have senses to perceive different stimuli in the environment. The spot on our outer membrane that perceived the sound waves became our ears and the one that perceived the reflection of light waves evolved into eyes.

There is a perfectly logical explanation for everything. Even if we can't comprehend it we sould have faith in the prophets of science, they won't lie to us. LOL

Answer 5

Took a long time. And contrary to what the creationists claim, the human eye is far from "perfect". That's why most of us are wearing corrective lense.

Other critters have eyes that are considerably better than our own. Not only can most birds see better than humans, they can also see ultraviolet light that is invisible to humans.

The best thing for you to do, is study what scientists actually say about evolution rather than what creationists claim scientists say about evolution. Creationists lie.

Answer 6

Eyeballs evoleved from say antennae to insect eyes to fish eyes to primate eyes to electronic eyes(!) Each step of the way the eye worked and small changes got it ready for an upgrade while its function continued,

Answer 7

I think that things evolved very incrumentally. The first functional eyes were very primitive, yet, nontheless, were good enough to allow for the survival of the organism. Incrumentally, as organisms developed better eyes ( better for survival) these eyes would be favored in the selection process.

Answer 8

Evolution of the eye

http://www.pbs.org/wgbh/evolution/library/01/1/l_011_01.html

Here is the start of the article

"When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection, even over millions of years? "

Answer 9

I'm gonna answer your question with a question. If evolution could develop something as complicated as an eye, how come it can not develop something that would overcome death? I think if you ascribe to "evolution" as your religion, then you will always be left with a meaningless existance, and death awaits you. But if you believe that there is a Creator, and that He sent his only begotten son, Jesus Christ. And He has made provision for your rebellion against your creater, in His crucifiction, and was raised on the third day. Then you have eternal life and everlasting peace!

Answer 10

evolution is patient and we would have to see so it waited