11/03/2009

Silkworm, Cow and Human

Talking about the evolution... Artificial selection - as opposed to natural selection - can produce forms completely unable to life without civilisation... For instance cow... Nice milk factory, isn't it?
And take this cow to the nature... It is so mutated - it can's survive.... Eve pack of dogs could kill poor cow. They wouldn't survive winter without man.
Even better example could be silkworm. "Created" by human to produce silk... Nowadays silkworms can't even clib on leaf if they fall from them... They are so good in silk production, but they can't survive without a man. They are marvelous factories... But they are mutants without chances to survive in nature...
And what about us? Aren't we mutants? Unable to exist without society? Without medical care? How far medicine has interfered our bodies and lifespan? Can we survive without medicine and society? Can XXIth century Robinson Crusoe would survive in the nature?
We have to remember we are mutating ourselves. We can't interfere in such important things like childbirth. Reproduction is CRUCIAL in natural selection. And Artificial selection try to control such important process.

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