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Fit and Selected - . . the most (Feb/01/2009 )

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Talking of 'Survival of the fittest' and 'Natural Selection', which organism is the most evolved and which organism is the fittest to survive?

-Nabi-

when i was in school (are you surprised that i can remember that far back?) i had a botany teacher who said that orchids were the most evolved life on earth. did i forget to mention that he was an orchidologist?

-mdfenko-

Nabi on Feb 2 2009, 08:25 AM said:

Talking of 'Survival of the fittest' and 'Natural Selection', which organism is the most evolved and which organism is the fittest to survive?



Actually this is a question you cannot answer as there are no fittest and most evolved organisms. Evolution has no aim, but is a random process. And you cannot compare species as every species is evolved far enough to cope with its environment (until now) and is fit enough to survive in its niche/range/environment. Otherwise it would have been replaced.
Don't try to compare apples and oranges... :)

-hobglobin-

The more I think about, the more I am sure the organisms I work with (at the moment some kind of fungal like protists) are the most evolved organisms ;) :P

but here is one link for mdfenko: mixotrophy ;)

-gebirgsziege-

gebirgsziege on Feb 2 2009, 07:34 PM said:

The more I think about, the more I am sure the organisms I work with (at the moment some kind of fungal like protists) are the most evolved organisms ;) :P

but here is one link for mdfenko: mixotrophy :P



All the parasites have the most apomorphic (derived) characteristics (sounds better than most evolved ;) ). Aren't human beings, too kind of "earth parasites"? ;)

-hobglobin-

hobglobin on Feb 2 2009, 07:50 PM said:

gebirgsziege on Feb 2 2009, 07:34 PM said:

The more I think about, the more I am sure the organisms I work with (at the moment some kind of fungal like protists) are the most evolved organisms ;) :P

but here is one link for mdfenko: mixotrophy :P



All the parasites have the most apomorphic (derived) characteristics (sounds better than most evolved ;) ). Aren't human beings, too kind of "earth parasites"? ;)


the parasites have, but sometimes it seems as if they are only able to adopt very fast (in time-spans of evolution) and specific......

-gebirgsziege-

gebirgsziege on Feb 2 2009, 01:34 PM said:

The more I think about, the more I am sure the organisms I work with (at the moment some kind of fungal like protists) are the most evolved organisms ;) :P

but here is one link for mdfenko: mixotrophy ;)

thanks for the link. interesting...

-mdfenko-

This is very subjective. If you were to trace life back to an ancestor and then statistcaly compare DNA - perhaps yopu might have an answer for the most evolved - as in the greatest difference from the early DNA.

-GeorgeWolff-

GeorgeWolff on Feb 3 2009, 02:44 AM said:

This is very subjective. If you were to trace life back to an ancestor and then statistcaly compare DNA - perhaps yopu might have an answer for the most evolved - as in the greatest difference from the early DNA.


but what about all the draw-backs of the DNA-phylogenies like e.g. long branch attraction in trees (this means a group of organisms spilt, but sometime later a certain char. was re-gained or lost again so they have very similar DNA seqs again)....
And in microbial phylogenies there are lots of proven events of HGT....so quite a number of genes is quite useless for phylogenies.....

early gene tree plants

-gebirgsziege-

understand but consider that this would drive even greater diversity rather than homology.

-GeorgeWolff-
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