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Scientists Discover Fish in Act of Evolution in Africa’s Greatest Lake

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jayfish Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:15 PM
Original message
Scientists Discover Fish in Act of Evolution in Africa’s Greatest Lake
Source: ecoworldly.com

In what could be a first in the world, a fish species known as cichlids has been observed by scientists in the act of splitting into two distinct species in Lake Victoria, Africa’s largest lake and one of the world’s biggest fresh water bodies.

This may be remarkable because what is causing them to diverge are adaptations to their vision as animals and plants try to cope with increased pollution and the effects of climate change. The change is also happening without geographical isolation, which was thought to be a precursor for evolution.

Read more: http://ecoworldly.com/2008/10/07/scientists-discover-fish-in-act-of-evolution-in-africas-greatest-lake/



What was that anti-evolution meme again? No currently observable proof of evolution? I guess we can toss that argument aside. I wonder what they will come up with next.

Jay
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mainegreen Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:18 PM
Response to Original message
1. Their argument: it's still a fish so it doesn't count.
Can't stand that 'no increase in types' argument.
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jberryhill Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:13 PM
Response to Reply #1
26. "kinds".... Science is just a word game to them

I knew a "Christian biologist" who spent years trying to figure out whether all turtles were one created "kind" or different "kinds".

Tortoises - oh no, completely unrelated.

Waste of a good mind that was.
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slackmaster Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Oct-08-08 03:44 PM
Response to Reply #1
42. They want to see a horse hatching from a fish egg
Or a hippo giving birth to a giraffe.
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paparush Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:19 PM
Response to Original message
2. Don't tell Bible Spice. Nanookie of the North would shoot them from a helicopter.
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angstlessk Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:19 PM
Response to Original message
3. that's just a devil trick..he does that to fool us into not believing the bible
dam, your dum!
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Schema Thing Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:20 PM
Response to Original message
4. When a fish can turn itself into food for 5000, I'll be impressed
until then, it's just an atheistic aquatic pervert mating outside it's own kind.
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WillParkinson Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:21 PM
Response to Original message
5. Gawd put it there...
To make evolutionists look foolish and to prove that his hand guides all to the believers.
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Lerkfish Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:23 PM
Response to Original message
6. not to rain on your parade, but is this merely adaption within the same species?
Edited on Tue Oct-07-08 01:24 PM by Lerkfish
not a biologist, but this sounds similar to an advantageous mutation that is favored by environment.

I should point out I firmly believe in evolution, but this sounds like a gray area to me.
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thereismore Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:31 PM
Response to Reply #6
10. Exactly. To prove they are different species would mean to prove they cannot interbreed,
which is unlikely. The definition of a species is not universally agreed on anyway.
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Jackpine Radical Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:38 PM
Response to Reply #10
11. That's a very old definition of species, with many problems.
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thereismore Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 04:46 PM
Response to Reply #11
24. I am aware of that, as I said. Species is a murky term. nt
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harmonicon Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:53 PM
Response to Reply #10
14. that isn't always the case
I've heard of cases of species such as leopards and cougars having fertile offspring, and they are separated by at least tens of thousands, but I think more like hundreds of thousands or millions of years of evolution.

Dogs, Wolves, Dingos, Coyotes, and Jackals can all interbreed, for instance. They're different species, but are similar enough physically, and share the same number of chromosomes to make it possible, though unlikely to take pace in the wild due to social differences (and of course not living on the same continent in some cases).
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TechBear_Seattle Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 02:40 PM
Response to Reply #10
18. Lions and tigers can interbreed. So can horses and mules.
Speciation occurs when two populations stop breeding in the wild. That does not mean they cannot interbreed at all, even after thousands of years of genetic isolation.
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antigone382 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 04:21 PM
Response to Reply #18
20. No, mules generally can't breed.
When horses and donkeys breed they produce mules which are not fertile offspring (except in rare cases, I believe).

That's just one example, however. It hardly negates your larger point.
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TechBear_Seattle Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 04:28 PM
Response to Reply #20
22. Donkeys, I meant to say.
:blush:

Thanks for the catch. And actually, a mule is the result of breeding a male donkey with a female horse. Reverse the genders and you get a hinny.
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antigone382 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 04:46 PM
Response to Reply #22
23. I didn't know that!
I hesitated to respond because I didn't want to be nitpicky, but I figured you just got your terms confused...we all do!

I love your sig line, btw.
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jberryhill Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:04 PM
Response to Reply #22
25. Not to mention the unspeakable experiments with pitbulls and lipstick /nt
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yardwork Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:15 PM
Response to Reply #10
27. The article says the fish are splitting into two distinct species.
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Anticon Donating Member (68 posts) Send PM | Profile | Ignore Tue Oct-07-08 02:21 PM
Response to Reply #6
16. Any adaptation is evolution...
That is what it is. I've always believed isolation is not necessary for evolution in that living things 'purposely' (along with emergent properties) adapt themselves. Isolation of diverging organisms is what brings about different species. We have witnessed evolution previously - every time a strain bacteria becomes resistant to an antibiotic it does so through evolution.
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Lerkfish Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 02:29 PM
Response to Reply #16
17. ok, thanks.
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redqueen Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 04:26 PM
Response to Reply #16
21. Exactly... and welcome to DU. (nt)
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fed_up_mother Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:57 PM
Response to Reply #6
32. Haha I think you did rain on that parade
Fundies accept micro-evolution, but they don't accept macro-evolution. The vast majority don't, anyway.
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Zhade Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 09:53 PM
Response to Reply #6
38. "merely adaption within the same species" IS evolution.
NT!

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geomon666 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:23 PM
Response to Original message
7. Satan's fish! n/t
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Ian David Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:24 PM
Response to Original message
8. And the commie Lysenkoism crowd will have their own take on it too.
No amount of evidence will convince the willfully ignorant.
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Taverner Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:40 PM
Response to Reply #8
12. Do people still beleive in Lysenkoism???
I thought the idea that "there is no gene - no DNA" was discredited in 1964?
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Submariner Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:30 PM
Response to Original message
9. We'll talk evolution when the Lutefisk stops tasting like shit
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Seldona Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 01:48 PM
Response to Original message
13. But, but, there is a cave painting in France roped off!
At least that is what my ONE christian friend said. He does mumble and dissappear alot. lol

My favorite question is how can you PROVE something that requires FAITH to believe in? ANY of the Bronze Age throwbacks attempt to hoist that bs on me, gets the same question and refusal to budge until it's answered. Shuts them up EVERY TIME.
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cobalt1999 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 02:15 PM
Response to Original message
15. Technically, all species are in the "act of evolution" all the time.
Evolution is a process that all species are ruled by all the time.
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yardwork Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:17 PM
Response to Reply #15
29. I thought about that but was going to skip commenting on it - I'm glad that you did!
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Winterblues Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 04:17 PM
Response to Original message
19. I wonder what it taste like?
:silly:
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Greyskye Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:17 PM
Response to Original message
28. I'm so going to hell for this...


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CaliforniaPeggy Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:31 PM
Response to Reply #28
30. I don't think so!
That is fucking hilarious!

:rofl: :rofl:
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Greyskye Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 05:50 PM
Response to Reply #30
31. OMG - I got CaliforniaPeggy to drop the F-Bomb!
My Dear CaliforniaPeggy, now I'm really going to hell!

:rofl:
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CaliforniaPeggy Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 06:23 PM
Response to Reply #31
33. No. You. Are. Not!
:rofl: :rofl:
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mike_c Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 06:47 PM
Response to Original message
34. that meme has been preposterous for a long time now....
Edited on Tue Oct-07-08 06:51 PM by mike_c
This is not a "first" by any means, except possibly in the mind of the journalist who wrote the article. Evolution is commonly observed.

Speciation is less commonly observed-- at least unambiguously-- for a variety of reasons, but it too is VERY well documented. This story represents something that's relatively rare: rapid sympatric speciation in animals *that occurs while someone is looking*.
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GoddessOfGuinness Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 07:14 PM
Response to Original message
35. I'm hoping this means that fundies will soon be extinct.
Evolve or perish.
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chknltl Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Oct-08-08 03:27 PM
Response to Reply #35
41. Now that you mention it...John McCain has been evolving into a slug...
and Ann Coulter morphed into a slug a few years back... is it evolution or is it something else? I think that what we are witnessing is more than evolution, I think it is the rapture and it is occurring before our very eyes but at a rate so slowly we just don't notice it! God, in his infinite wisdom is turnin' 'em all into slugs! Puh-raise The Lord!!! :7

(Do slugs speak English-Do freepers speak English? I rest my case!)
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GoddessOfGuinness Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Oct-08-08 04:15 PM
Response to Reply #41
43. For most of us, that would be a regression...
but in their cases, it's definitely evolution! :D
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progressoid Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 07:49 PM
Response to Original message
36. it's not evolution. Jeebus did it.
:eyes:
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Zhade Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 09:52 PM
Response to Original message
37. Although this is not the first time evolution has been observed, this is awesome!
Take that, anti-knowledge fundie fools!

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NoodleyAppendage Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Oct-07-08 10:06 PM
Response to Original message
39. Those aren't fishes, godless fool. Those are loaves of bread!
See they aren't evolving, they are just going through the leavening process.

J
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Dogmudgeon Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Oct-08-08 12:16 AM
Response to Original message
40. Shades of *Darwin's Radio*
A recommended read, too.

--p!
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harun Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Oct-08-08 04:39 PM
Response to Original message
44. You are obviously not a scientist
The report summarizes that new species may be born because of vision differences and what fish see at least in one African lake could be the driving force that causes them to evolve into new species.

See those words "may be", they are rather important. Like most topics dealing with pro-evolution or pro-creation the problem isn't from the scientist it is from people like you who take what you want out of the story instead of the facts. Fact is, it is another theory. A very interesting one, but still just another theory.
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