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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)
 
::::::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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:::::::MalP, evolution is continually stating that the giraffe grew the long neck to reach the higher leaves in the trees, so it isn't a valve thing that matters here.  It needs the leaves in the trees to eat and to survive, am I right?  Let's set the way-back machine to a dozen or so million years ago, the approximate time that the evo crowd states that giraffes began stretching their dinky necks.  Let's say that this year the rainfall was good, and the trees decided they were going to grow another two feet, putting the leaves out of reach of the stubby-necked giraffes.  They need to do something johnny-on-the-spot, don't they?  Question one:  just what are these giraffes going to do?  Question two: how many years do evo-supporters state that it took for these stubby-necked giraffes to grow enough neck to reach the leaves?  Question three: how long does an animal the size of a stubby-necked giraffe live if it can only eat leaves in a tree, but can't reach them this year?  Question four: if the stubby-necked giraffe needs to eat, do you honestly think it's going to wait a thousand years or more to grow the neck ''that it has got to have right now?''  Answer: that stubby-necked giraffe will be forced to look for other food sources; if it means it grazes like a cow, it grazes, and there wouldn't be a need for a long neck, anyway.  It's either that or it dies of starvation within three weeks.  And that is not enough time to rearrange it's genes to play that DNA game that evo's are touting.  [[User:Karajou|Karajou]] 22:39, 8 August 2010 (EDT)
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