Register | Sign In


Understanding through Discussion


EvC Forum active members: 63 (9161 total)
2 online now:
Newest Member: popoi
Post Volume: Total: 915,581 Year: 2,838/9,624 Month: 683/1,588 Week: 89/229 Day: 61/28 Hour: 0/3


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
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:
29+ Evidences for Macroevolution: The Scientific Case for Common Descent

This message is a reply to:
 Message 59 by herebedragons, posted 12-29-2009 2:14 PM herebedragons has not replied

  
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.

This message is a reply to:
 Message 443 by Big_Al35, posted 02-20-2012 3:49 PM Big_Al35 has not replied

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024