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Originally posted by ag2000
reply to post by melatonin
Thats my point! Its presented as FACT, when it is not. I was taught in school that evolution is fact, when it is not. It should be represented as what it is, a theory. Acknowledging that there is supporting evidence is completely different than accepting that evidence as proof that the theory is proven.
[edit on 3-3-2008 by ag2000]
Originally posted by OSSkyWatcher
people always split micro and macro
it's the same thing EVOLUTION
Originally posted by ag2000
Thats my point! Its presented as FACT, when it is not. I was taught in school that evolution is fact, when it is not. It should be represented as what it is, a theory. Acknowledging that there is supporting evidence is completely different than accepting that evidence as proof that the theory is proven.
Originally posted by melatonin
A serious amount of little mutations over a large period of time?
If you accept that microevolution can produce new genes and traits, and new species (which we have seen), then add up lots of little microevolutions over time, and we get a big macroevolution.
And, remember, we are not talking about a single creature.
One evolves one way, the other another way.
If not, we have lots of evidence for macroevolution, and that is sufficient to accept it as a valid explanation.
The unique sea creature, which has two limbs fewer than a normal octopus, is believed to be the result of a birth defect rather than an accident, say his keepers at the Blackpool Sea Life Centre in northwest England.
Originally posted by Howie47
Howie47>No one has observed life changing for millions of years! Life changes every year. Even every generation. That doesn't mean it is getting more and more complex. Or that it started with a common ancestor.
Random mutations, providing the information in the genome; to build more and more complex designs, is nonsense. Those that accept such a notion; are in deed very gullible.
Radio emerges from the electronic soup
16:00 31 August 2002
A self-organising electronic circuit has stunned engineers by turning itself into a radio receiver.
This accidental reinvention of the radio followed an experiment to see if an automated design process, that uses an evolutionary computer program, could be used to "breed" an electronic circuit called an oscillator. An oscillator produces a repetitive electronic signal, usually in the form of a sine wave.
Paul Layzell and Jon Bird at the University of Sussex in Brighton applied the program to a simple arrangement of transistors and found that an oscillating output did indeed evolve.
Originally posted by OSSkyWatcher
how the heck can anyone consider evolution a theory when the whole skin pigment and the continent of africa thing is around is beyond me
maybe it's because i wasn't schooled in america
but here are some interesting reads if you still think evolution is a theory
en.wikipedia.org...
en.wikipedia.org...
en.wikipedia.org...
en.wikipedia.org...
en.wikipedia.org...
en.wikipedia.org...
when you put that all together you can see that because humans evolve africans have evolved so they can live in a sunny climate
they do not get sun burns
even old people evolve when living in florida
[edit on 3-3-2008 by OSSkyWatcher]
Originally posted by Essedarius
I understand that, given BILLIONS of years, a garter snake can become a giraffe if you change itsy tiny pieces of it at a time.
But WHY WOULD IT?
Is it possible for the genes of a snake to suddenly DECIDE to grow legs...or, in the case of the intermediate species: nubs?
Iif indeed it is a RANDOM process.
I think there is a BIG difference between sandpipers' with longer beaks increasing in population because they are well-fed, and a mutated fish being born with a beak and randomly being more adapted to his environment.
Of course we are...in the end.
Genetic mutations don't occur simultaneously in entire populations, do they? (Seriously...please tell me if they do...I'm not being rhetorical.)
It seems like, the way you're describing it would have to be wrong...it seems like the genetic mutation would have to precurse the separation of the population.
If a population splits, why would their evolution be driven by their geography? That doesn't make sense. Mutation would drive the split, not the other way around, right?
29 examples? That's "lots?"
I think, in the grand scheme of things, it might be more semantically accurate to call that "a few" examples.
Originally posted by melatonin
www.newscientist.com...
Originally posted by Beachcoma
Oh wow! That's amazing. So can this be an example of selection in action? That the program selected an easier way to produce the required oscillations?
Originally posted by melatonin
How about a population of fish developing more leg-like fins over time?
Evolution happens at the level of the population.
...the area in which they find themselves might involve different climate, different food, different predators etc etc. Basically, different selection pressures.
29+
Originally posted by intrepid
reply to post by Titen-Sxull
How about both theories? Maybe "God" was playing around, think "science project" just to see what would evolve?
Originally posted by Essedarius
If individuals in a population begin to manifest identical mutations at the same time, what is your explanation for the amazing communication that is taking place between the genetic code of these individual fish?
It would be like everyone at my work randomly showing up with a haircut on the same day. Beyond unlikely.
29+
Are you serious?
Originally posted by keeb333
At any rate, I believe that understanding the timescale involved is the main problem most people have in understanding evolution.
Originally posted by Bigwhammy
I believe in micro but not macro. With the time you talk about there should be tons of the in between animals.
But they are not there.