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  Topic: Jerry Don Bauer's Thread, Lather, Rinse, Repeat< Next Oldest | Next Newest >  
Occam's Aftershave



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(Permalink) Posted: Nov. 26 2012,09:39   

Quote (Jerry Don Bauer @ Nov. 26 2012,09:19)
If all of life sprang from a common ancestor--a protist--as example, the fossil record would show a gradual transition from that initial organism to higher life forms: gradual macroevolution, or what Gould and others spoke of as gradualism.

The fossil record is a very accurate record of the history of the origin of homo sapiens and the other complex life forms.

But it does not show this by any stretch of the imagination! Gould and many others have pointed out this flaw as did Darwin himself--Which is one reason, I believe, he came up with Punctuated Equilibrium (Punk Eek) which has more problems than the lack of gradualism he attempted to explain away.

Instead of gradualism, we find long periods of stasis where nothing seemed to be happening, interspersed with periods of sudden (relatively so-when we consider the billions of years of biotic history on earth, our island home) appearance of higher life forms.


Sorry but that's just not true.  Evolution acts as a feedback loop tracking changes in the environment.  If the environment is stable for long periods of time we'll see long periods of little morphological change.  If the environment changes rapidly (geologically speaking) we'll see more rapid morphological change.  There are clear examples of both occurrences in the fossil record.

 
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The Cambrian Explosion is a good example of this.


OK, so you're ignorant of all the pre-Cambrian life forms that have been discovered, i.e. the Ediacaran fauna.

 
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These higher evolved organisms appeared seemingly out of nowhere with no fossil record leading up to that appearance--fully formed and ready to compete in their environment.


Tell us, what would a not fully formed animal look like?  :p

Sorry doofus, but the fossil record 'sampling rate' is way too low to accurately record every step in a transitional sequence, especially if the environment/morphological changes are happening relatively rapidly.  Scientists have known this for about two centuries now.

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JoeG: And by eating the cake you are consuming the information- some stays with you and the rest is waste.

  
  740 replies since Nov. 21 2012,08:55 < Next Oldest | Next Newest >  

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