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Live like Kiwi!
Comptine
post Feb 4 2009, 11:58 PM
Post #1


Sing to Me
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post Feb 5 2009, 12:05 AM
Post #2


Live long and prosper.
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My mind has been fixated on Biology all week, due to studying for it every free moment. This shows a great example of evolution, and adaptation.
 
Gigi
post Feb 5 2009, 12:18 AM
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in a matter of time
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QUOTE(divergent @ Feb 4 2009, 09:05 PM) *
My mind has been fixated on Biology all week, due to studying for it every free moment. This shows a great example of evolution, and adaptation.

I don't want to be a bitch but that's not quite right. Kiwi shows not Darwin's theory of evolution, but a previous theory brought up by Jean-Baptiste Lamarck. His theory was that all organisms strive towards perfection by "acquiring" desirable characteristics. In Kiwi's case, he's "acquiring" wings through his determined usage of it.

Lamarck used the example of giraffes. Early giraffes had short necks. So the short-necked giraffes would try to reach for the fruit on the taller branches by "stretching" their necks, which would encourage the growth of a longer neck over the lifespan. They would then pass this on to their offspring.

This is WRONG. You cannot just acquire longer limbs through repeated exercise. And even if you could, your DNA does not change throughout your lifetime for you to be able to pass this acquired characteristic onto your children.

(in a very small nutshell) Darwin's theory of evolution is different from Lamarck's theory in that Darwin says that mutations occur in the DNA of organisms which makes some of them more well-suited to survive than others. So they survive, the weak ones die and the fit ones continue their genes to the next generation.

Therefore, Kiwi =/= theory of evolution or adaptation
 

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