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Author Topic:   Definition of Species
New Cat's Eye
Inactive Member


Message 60 of 450 (540856)
12-29-2009 2:33 PM
Reply to: Message 59 by herebedragons
12-29-2009 2:14 PM


Re: Speciation discussion
What I would be interested in learning more about is a mosquito that has developed a variation in it's sexorgans that will not allow it to mate with it's parent population. I couldn't remember what the name of it was nor where I saw reference to it.

This made me recall another example that you might be interested in reading about.

In short, there was a species of snail where the ones with right-handed spiralled shells were physically unable to mate with another with a left-handed spiralled shells. Scientists figured out that the handedness of the sprial came down to one gene and they could control it. I think they artificially caused a speciation even by genetically engineering a bunch of left-handed ones, or something like that....

you can read about it here:

http://findarticles.com/...s/mi_m1200/is_16_164/ai_110459320

and here:

http://www.springerlink.com/content/7544p2781l78n437/

The main reason I joined this forum is to learn about the reasons that scientists accept evolution.

This is a great site:

http://www.talkorigins.org/faqs/comdesc/


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 Message 59 by herebedragons, posted 12-29-2009 2:14 PM herebedragons has not yet responded

  
New Cat's Eye
Inactive Member


Message 444 of 450 (653395)
02-20-2012 4:15 PM
Reply to: Message 443 by Big_Al35
02-20-2012 3:49 PM


Re: Hyperspeciation?
Ok, so Robert has supplied evidence and Huntard has countered with evidence too.

That's not really what people mean by "evidence"...

At least, it has to support or counter a claim. Mentioning that a book exists is not supplying evidence.


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 Message 443 by Big_Al35, posted 02-20-2012 3:49 PM Big_Al35 has not yet responded

  
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