Evolution of the Eye

[dude2193]

[QUOTE=FreezingStorm;25237367]I was wondering what the inside of the eye looked like.[/QUOTE]

google images bro

[OvB]

Yesterday my Blue Chromis died. Usually my lobster get's to the dead before I do, so I took the opportunity to do a microscopic dissection(the fish was only an inch long). Looking into the eye of a fish through a microscope was fascinating. Removing it and looking at the lens directly was even better. The fish was given a proper funeral via the toilet. R.I.P little blue guy.

Eye love science.

[Archy]

i still don't get it - i imagine the changes are gradual in evolution, so how could a change so small make such a big difference in something's survivability? moreover how do those changes carry from generation to generation and continue to change in that set way

[imasillypiggys]

[QUOTE=Archy;25239612]i still don't get it - i imagine the changes are gradual in evolution, so how could a change so small make such a big difference in something's survivability? moreover how do those changes carry from generation to generation and continue to change in that set way[/QUOTE]

because a small change that helps is better then 1 that doesnt, and the 2nd question its not a set path but anything that helps will spread

[Pythagoras]

[QUOTE=Archy;25239612]i still don't get it - i imagine the changes are gradual in evolution, so how could a change so small make such a big difference in something's survivability? moreover how do those changes carry from generation to generation and continue to change in that set way[/QUOTE]

The difference between 2 generations may be so small that it won't affect survivability much at all, but this is over thousands of generations through millions of different animals. Even a small change can have a huge outcome when dealing with numbers like that.

[God's Pimp Hand]

As much as eye admire Mr. Dawkins, I envy the pupils that fall under his teaching even more so. Too bad this thread's littered with puns where one is cornea than the next.

[XCV]

[QUOTE=Archy;25239612]i still don't get it - i imagine the changes are gradual in evolution, so how could a change so small make such a big difference in something's survivability? moreover how do those changes carry from generation to generation and continue to change in that set way[/QUOTE]

I think I get what you're asking. How could an organism with a [i]slightly[/i] more round eye be better at surviving with one [i]slightly[/i] less round? Well the answer is it doesn't survive better. However, its genes are forever changed, so when some of its offspring obtain even more [i]slightly[/i] rounded eyes, by pure chance mind you, soon the difference between our original organism is enough that those offspring will survive more frequently than the original.