In reference to the creationist idea that the human eye couldnt have evolved, I recently read this article -HERE- regarding the evolution of vision and thought I ought to share it.

Interesting. I don’t understand one thing, though. In the article they say that, “we now have a time frame for the evolution of animal light sensitivity. We know its precursors existed roughly 600 million years ago.” 600 million years ago. That’s before the Cambrian explosion when most (all?) animals were individual-cell microbes. How (and why?) would anything of this sort have evolved in microbes?

George,

Around this time, Jellyfish appeared in the oceans according to http://www.historyoftheuniverse.com/cd600.html & http://en.wikipedia.org/wiki/Timeline_of_evolution which leads to this http://en.wikipedia.org/wiki/Multicellular_life

As I recall, porifera (sponges) and ceolenterates (jellyfish, sea anemones, hydras, etc.) were about the first multicelled animals.  Ceolenterates have nerve nets and some have light sensitive cells, I believe.

Occam

erasmusinfinity - 23 October 2007 09:31 PM

In reference to the creationist idea that the human eye couldnt have evolved, I recently read this article -HERE- regarding the evolution of vision and thought I ought to share it.

Corals “mate” in the full moon and need “vision” to synchronize…
[LINK—search “coral” “full moon”  ]

Jackson - 24 October 2007 06:09 AM

Corals “mate” in the full moon and need “vision” to synchronize…

Cool!