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6 years ago
Thursday, January 31, 2008
Monday, January 28, 2008
sterile produce sterile offspring
"Fourthly, how can we account for species, when crossed, being sterile and producing sterile offspring, whereas, when varieties are crossed, their fertility is unimpaired?"
-Charles Darwin, The Origin of Species, Chapter VI Page 213
Maybe it is just 6 in the morning after an evening of no sleep but on one hand this sentence seems to make no sense to me however at the same time I understand what is being said perfectly. It's the "being sterile and producing sterile offspring" bit that really throws me off because, in literal terms, how can one be sterile and yet produce offspring? However at the same time I understand that what this most probably means is that after cross breeding the first generation may not be effected however it may be the second or third generations that show the negative effects of cross breeding. I can see how this sentence could be confusing however to someone whom possesses a limited knowledge of the effects of cross breeding.. Wouldn't it be important in writing a nearly 700 page book based upon one's life work to produce very concise literature be the utmost of importance?
Don't get me wrong, I love Charles Darwin. I have a Darwin fish on the back of my car. It's just something I caught, and I wanted to write my thoughts about the subject out.
-Charles Darwin, The Origin of Species, Chapter VI Page 213
Maybe it is just 6 in the morning after an evening of no sleep but on one hand this sentence seems to make no sense to me however at the same time I understand what is being said perfectly. It's the "being sterile and producing sterile offspring" bit that really throws me off because, in literal terms, how can one be sterile and yet produce offspring? However at the same time I understand that what this most probably means is that after cross breeding the first generation may not be effected however it may be the second or third generations that show the negative effects of cross breeding. I can see how this sentence could be confusing however to someone whom possesses a limited knowledge of the effects of cross breeding.. Wouldn't it be important in writing a nearly 700 page book based upon one's life work to produce very concise literature be the utmost of importance?
Don't get me wrong, I love Charles Darwin. I have a Darwin fish on the back of my car. It's just something I caught, and I wanted to write my thoughts about the subject out.
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