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:::::Moreover, the issue of why a valve would develop remains implausible due to the irreducible complexity.--[[User:Aschlafly|Andy Schlafly]] 22:06, 8 August 2010 (EDT)
 
:::::Moreover, the issue of why a valve would develop remains implausible due to the irreducible complexity.--[[User:Aschlafly|Andy Schlafly]] 22:06, 8 August 2010 (EDT)
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::::::I have personally seen giraffes eating from trees. They definitely do not feed on low-lying vegetation exclusively.
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::::::On your second point: I had expected you to answer that, and that's why I already "countered" it in my first post, though maybe not clear enough: The longer a giraffe's neck is, the higher the chance of it having some blood pressure problems, while it still benefits from its reach (read the balance thing again). A giraffe would definitely benefit from a valve even if the length of the neck hasn't increased as much as it is now -- a valve would not inprove its reach to high branches, but it would decrease the chance that it will suffer from a potential shortage of blood in the brains, which can of course be fatal. Anyway, as I also stated: animals already have these valves, but in a less sophisticated form. All it takes is for these valves to grow stronger and more efficient. Taken all of this in consideration, I think it's safe to say that -- in case evolution is true -- there certainly is a possibility of giraffes growing long necks. -[[User:MalP|Mal Peeters]] ([[User_talk:MalP|talk]]) 22:33, 8 August 2010 (EDT)
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