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Parting Genomes: UA Biologists Discover Seeds of Speciation [Happening as they observe!]
University of Arizona ^ | 07 June 2004 | Paul Muhlrad

Posted on 06/08/2004 3:30:58 AM PDT by PatrickHenry

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To: PatrickHenry
You have not left us a fossil record of your existence.

There exists no paper trail for you between the ages of four months and seven months. Begone, phantom!

21 posted on 06/08/2004 6:57:46 AM PDT by VadeRetro
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From the article:

"Whether the two closely related fruitfly populations, designated Drosophila mojavensis and Drosophila arizonae, represent one species or two is still debatable among biologists"

And...

"biologists haven't been able to put their finger on just what initiates the reproductive isolation."

And...

"Further experiments demonstrated that the sterility trait is caused by more than one genetic change. "I think there are many genes--4 or 5 probably, maybe many more," Reed predicted."

And...

"There's a huge amount of biodiversity out there, and we don't know where it comes from."

Looks like there is still plenty of research to do.

22 posted on 06/08/2004 6:59:54 AM PDT by Michael_Michaelangelo
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To: VadeRetro
Begone, phantom!

I can't even imagine what they'll think when some future biologist unearths your fossilized remains.

23 posted on 06/08/2004 7:02:44 AM PDT by PatrickHenry (God bless Ronald Reagan!)
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To: PatrickHenry

I'm basically hoping they'll say, "Damn if he didn't get all the mileage out of THAT body."


24 posted on 06/08/2004 7:09:10 AM PDT by VadeRetro
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To: familyofman
This has nothing to do with evolution - there is no fossil record of the changes noted & you can't prove anything concerning evolution without a complete fossil record of the changes ...

Excellent parody of the creationist position, but it is a bit on the vicious side. Lets play nicely, now.

25 posted on 06/08/2004 7:09:49 AM PDT by js1138 (In a minute there is time, for decisions and revisions which a minute will reverse. J Forbes Kerry)
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To: js1138

"...a bit on the vicious side. Lets play nicely, now."

That was being nicey-nice, even after 2 cups of good Columbian joe.


26 posted on 06/08/2004 7:16:04 AM PDT by familyofman (laying in the dark, where the shadows run from themselves)
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To: VadeRetro
You can see she's got quite a mind.

Yep, a decent set of hemispheres...

27 posted on 06/08/2004 7:21:32 AM PDT by mikegi
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To: PatrickHenry

I'm not totally clear on the theory here. Is it the changes in the female fly's genes that causes the sterile hybrid or is it the male's??? You'd have to use one male and several females then several males and one female to distinguish the difference. The text isn't clear on this.


28 posted on 06/08/2004 7:30:47 AM PDT by mikegi
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To: mikegi; VadeRetro
Here's a web page on her: Laura Reed Graduate Student. Definitely mammalian.
29 posted on 06/08/2004 7:44:27 AM PDT by PatrickHenry (God bless Ronald Reagan!)
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To: PatrickHenry

Well, the Department of Homeland Security evinces one Creationist claim. There was a communications gap between the FBI and the CIA. Now there are two gaps between the DHS and FBI and between the DHS and CIA. In this case, the two gaps are at least as wide as the first gap. Not to mention the Kenndey's Missle Gap, General Turgidson's Mineshaft Gap, and Candidate Kerry's General Giap. (Last sentence no verb, in the rain.)


30 posted on 06/08/2004 8:11:11 AM PDT by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
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To: Doctor Stochastic
A most timely post. I nominate you "the Gapper."

Explanation for literal-minded creos: As in ... "Win one for the Gapper."

31 posted on 06/08/2004 8:49:35 AM PDT by PatrickHenry (God bless Ronald Reagan!)
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To: Shryke
...and it reminds me of some of these threads, when the creos show up with the same, pat responses to everything. What say you?

Indeed; there was an attempt several years ago to compile a master list of Creationist arguments, and assign an unique numerical designation to each one, such that we could all reduce the amount of typing expended on these threads. Basically, when a Creationist showed up and invoked one of the standard arguments, the Evo's would look it up, and reply: "Ah; that's #47, to which the standard rebuttal is Evo argument #14.... thank you for participating in the discussion."

Unfortuneately, it did go over very well.....

32 posted on 06/08/2004 8:53:10 AM PDT by longshadow
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To: PatrickHenry
When the two groups can no longer interbreed, or just prefer not to, they stop exchanging genes and eventually go their own evolutionary ways, thus forming separate species.

According to this Negros and Caucasians in the early 1700's were different species. But then we became one species again in the 1960's.

Either they neeed to do a lot more work on this or they have to phrase things much better

33 posted on 06/08/2004 8:56:21 AM PDT by John O (God Save America (Please))
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To: longshadow

I meant: "did NOT go over well"


34 posted on 06/08/2004 8:56:54 AM PDT by longshadow
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To: longshadow
... an attempt several years ago to compile a master list of Creationist arguments, and assign an unique numerical designation to each one ...

I thought we decided it had already been done: An Index to Creationist Claims.

35 posted on 06/08/2004 9:04:49 AM PDT by PatrickHenry (God bless Ronald Reagan!)
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To: John O

Thank you for your thoughtful contribution.


36 posted on 06/08/2004 9:05:41 AM PDT by PatrickHenry (God bless Ronald Reagan!)
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To: John O
When the two groups can no longer interbreed, or just prefer not to, they stop exchanging genes and eventually go their own evolutionary ways, thus forming separate species.

That is kind of an unclear statement. I don't think it really refers to preferences (i.e., I prefer to exchange genes with redheads but that doesn't mean that my descendants will form a separate species from brunettes) but rather talks about different species that CAN interbreed but do not do so under natural conditions (such as tigers and lions, who can create liger and tigon hybrids)

37 posted on 06/08/2004 9:13:46 AM PDT by Modernman (It's true hard work never killed anybody, but I figure, why take the chance? -Ronald Reagan)
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To: PatrickHenry

Thanks, that'll spark my day.


38 posted on 06/08/2004 9:14:45 AM PDT by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
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To: John O

Actually, it's a rarely discussed phenomenon that Australian aborigines who conceive children with non-aborigines tend to have extremely high rates of miscarriage and stillbirth. This is likely attributable to the 70,000-50,000 year genetic separation of aborigines from the rest of mankind.


39 posted on 06/08/2004 9:15:06 AM PDT by AntiGuv (When the countdown hits zero - something's gonna happen..)
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To: AntiGuv

Got any hybrid info on other distinct groups like pygmies?


40 posted on 06/08/2004 9:19:37 AM PDT by PatrickHenry (God bless Ronald Reagan!)
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