Earliest Evolution of Vision Genes Discovered
Posted: 23 October 2007 09:31 PM   [ Ignore ]
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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.

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Posted: 23 October 2007 11:04 PM   [ Ignore ]   [ # 1 ]
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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?

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Posted: 23 October 2007 11:18 PM   [ Ignore ]   [ # 2 ]
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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

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Posted: 24 October 2007 01:59 AM   [ Ignore ]   [ # 3 ]
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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

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Posted: 24 October 2007 06:09 AM   [ Ignore ]   [ # 4 ]
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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”  ]

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Posted: 24 October 2007 07:17 AM   [ Ignore ]   [ # 5 ]
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Jackson - 24 October 2007 06:09 AM

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

Cool!

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