leopold said:Gould argued that evolution proceeds quite rapidly at crucial points, with speciation occurring almost instantaneously.
:
:
This process would account for the lack of transitional forms throughout the fossil record, a problem Darwin lamented but expected to be resolved by future paleontologists.
There are many transitional fossils. The only way that the claim of their absence may be remotely justified, aside from ignoring the evidence completely, is to redefine "transitional" as referring to a fossil that is a direct ancestor of one organism and a direct descendant of another. However, direct lineages are not required; they could not be verified even if found. What a transitional fossil is, in keeping with what the theory of evolution predicts, is a fossil that shows a mosaic of features from an older and more recent organism.
http://www.talkorigins.org/indexcc/CC/CC200.html
this doesn't happen at the species level.
gould, as a paleontologist, would be well aware of "earth science".You are ascribing the fossil record entirely to biology, without mentioning the earth science involved. Deposition was interrupted.
The succession of fossil forms is associated with the succession of stratigraphic geological deposits, which accumulate for millions of years, separated by discontinuous transitions. The discontinuities reflect periods during which sediments failed to accumulate that typically last 50,000 to 100,000 years or longer. Moreover, a time span of 100,000 years encompasses one million generations of insects such as Drosophila, or snails such as Cerion (Gould’s subject of empirical research), and tens of thousands of generations of fish, birds, or mammals. Speciation events and morphological changes deployed during thousands of generations may occur by the slow processes of gene substitution that are familiar to the population geneticist. Speciation typically involves a few thousand generations, although it can occur considerably faster. The well-documented evolutionary diversification of Drosophila and land snails in Hawaii, the largest and most recent island of the archipelago, shows that scores of sequential speciation events and extensive morphological diversification can occur in much less than one million years, by the gradual processes of gene substitution.
FRANCISCO J. AYALA, The Structure of Evolutionary Theory: on Stephen Jay Gould’s Monumental Masterpiece, Theology and Science, Vol. 3, No. 1, 2005, p.99
it IS of relevance to you.This is lifted from the TalkOrigins formulation of the retort to the Creationist claim that no transitional fossils exist. It's not relevant to me.
talkorigins, the one you said wasn't relevant, says:The Silurian brachiopod Eocoelia has transitional fossils.
gould, as a paleontologist, would be well aware of "earth science".
earth science isn't mentioned as a factor in goulds biography.
plus, we have this from "science":
"The absence of transitional forms be- tween established species has tradition- ally been explained as a fault of an im- perfect record, an argument first advanced by Charles Darwin. The accumulation of sediments and the entrapment and fossilization of animal bones is, at best, a capricious process: as a result, geologists are familiar with the difficulties of reconstructing past events. According to the traditional position, therefore, if sedimentation and fossilization did indeed encapsulate a complete record of prehistory, then it would reveal the postulated transitional organisms. But it isn't and it doesn't."
-Science, vol. 210 no. 4472 pp: 883-887
you implied transitional fossils meant at the species level.
the quote says you are wrong.
talkorigins, the one you said wasn't relevant, says:
However, direct lineages are not required; they could not be verified even if found.talkorgins said:The Silurian brachiopod Eocoelia has transitional fossils.
ask hercules rockefeller if i misrepresented, misquoted, or took out of context, ayala.
i have no idea what he was.
his bio says he was a paleontologist among other things.
you know how these closet burlesque dancers are.
all i am willing to say about gould is what i've read about him.
i have not knowingly read any of his books.
why do you keep insisting these are MY claims?
for the record, i am not claiming ANYTHING.
…..the ONLY thing you can state with certainty about evolution is that species adapt.
all the rest is mere speculation.
there is no evidence that the adaption process can be applied to macroevolution. not in the lab nor in nature itself.
not my fault the fossil record looks like scattershot.
let me guess, something in the pnas link is cramping your crotch.
i have never heard of spandrels.
is that short for "my mommy and daddy were chickens but i seem to be a tree"?
care to address the links to "science", "pnas", and "sciencedaily" ?
adaptation is a fact.
whether that process can be applied to macroevolution is a very big question mark.
ask hercules rockefeller what the chicago conference concensus was in regards to this matter.
If human culture is part of nature - and assuming that nature is a measurable, physical phenomena - why do different groups of humans have different cultures?
No there wasn't.There was a point when natural selection, which had been the path of evolution, died for humans.
As per the previous four Denial of Evolution threads (here, here, here and here), this fifth instalment is also a quarantine area for threads that blindly regurgipost and quote-mine all the usual creationist/evolution denialism stuff, such as (but not limited to):
-- scientists know that evolution is wrong, but are hiding that fact in order to retain their power;
-- evolution is just a theory;
-- Darwin recanted on his deathbed;
-- no one has seen a bacterium evolve into a fish;
-- there are no transitional fossils;
-- speciation has never been seen;
-- okay, speciation has been seen, but the creation of new Genuses has not;
....and everything else which is summarily smacked down by everyone who passed high school biology.
You made some good examples of clear crackpottery.
Do you have an algorithm to prove the emergence of chemicals to life?
Taken from recursion theory, you can add a chemical to a chemical and you still have a chemical for all n.
So, what step causes the collection of chemicals to all of a sudden emerge into life, which is clearly different from chemicals?
We need an example of a living being which is not made of chemicals, to support that assertion.chinglu said:So, what step causes the collection of chemicals to all of a sudden emerge into life, which is clearly different from chemicals?
DNA.Do you have an algorithm to prove the emergence of chemicals to life?
Except properties continue to accrete as you do that. And it accretes the property of replication as soon as it lands on the 4-codon helix. The rest is history. Self replication is so advantageous against just withering away, that all the recursion you can think of will simply strengthen the odds of survival for a given set of traits.Taken from recursion theory, you can add a chemical to a chemical and you still have a chemical for all n.
Or clearly the same if you're discussing biochemistry. The causes of arriving at DNA by random reactions can be addressed by grabbing a clump of dirt from the ground and doing a chemical assay. Why does it contain what it contains?So, what step causes the collection of chemicals to all of a sudden emerge into life, which is clearly different from chemicals?
Before science there was a bible with the energy of evolutionary creation , see Genesis 1:1--- end
What science does is to enlighten how things are done and learn how thing function and as we learn. We apply the knowledge to make the fellow man to live better ( some )
We need an example of a living being which is not made of chemicals, to support that assertion.
The currently standard "algorithm", in your sense, thought the most likely candidate to have produced living beings from non-living assemblages of chemicals, is called "Darwinian Evolution". Check it out some time - its is a powerful and elegant theory.
DNA.
Except properties continue to accrete as you do that. And it accretes the property of replication as soon as it lands on the 4-codon helix. The rest is history. Self replication is so advantageous against just withering away, that all the recursion you can think of will simply strengthen the odds of survival for a given set of traits.
Or clearly the same if you're discussing biochemistry. The causes of arriving at DNA by random reactions can be addressed by grabbing a clump of dirt from the ground and doing a chemical assay. Why does it contain what it contains?
The "Suddenness" with which life appears is a relative term. On some scales, it's an inconceivably long time. Of course, games of chance have their own statistics for estimating the time at which an event will occur.
Clearly a fundamental principle in all of the natural world, as to causes, is randomness. Why are you you? Calculate the number of ova and spermatazoa from which you could have been formed. Why that pair? Clearly, gametes. But why that particular pair? And here you're back to the norm of nature, which is, that whatever is not deterministic is, by default, random.
This whole conversation is absurd.
Not only can we demonstrate self replicating molecules, but we can demonstrate self replicating molecules that evolve and mutate.
Self-Replicating Chemicals Evolve Into Lifelike Ecosystem
Most of these mutations went away quickly, but — sound familiar? —
some of the changes ended up being advantageous to the chemicals in replicating better. After 77 doublings of the chemicals, astounding changes had occurred in the molecular broth.
"All the original replicators went extinct and it was the new recombinants that took over," said Joyce. "There wasn’t one winner.
There was a whole cloud of winners, but there were three mutants that arose that pretty much dominated the population."
It turned out that while the scientist-designed enzymes were great at reproducing without competition, when you put them in the big soup mix, a new set of mutants emerged that were better at replicating within the system. It almost worked like an ecosystem, but with just straight chemistry.
Self replication has long been known for chemicals.
Now, tell me, after the "chemical" self replicated, did you have a chemical or something else?
That is an important question.
Try synthesizing an enzyme or protein from a gene and you'll find a veritable plethora of algorithms Nature has handed down.The dna is not an algorithm.
Not "in the beginning". The cell wall evolved to nurture and protect the nucleus.It is invalid without the cell.
Says who?The cell cannot exists without the dna and the dna cannot exist without the cell prior in terms of "creation".
Sure it is. That's what one of the essential qualities of Brownian motion, which one of the essential processes affecting spontaneous precipitation of reactants out of solution.And, randomness is not a solution to the problem.
You mean in cosmology? In biology, specifically in understanding evolution, it's a fundamental working principle. Why would you say otherwise?Randomness is a human term confessing the lack of ability of calculation the problem.
But this is not a cosmology question, so how does it pertain to evolution of life?If the universe is indeed random, then the fundamental forces do not exist.
Indeed all science must be thrown out if our only goal is to dismiss it through epistemics rather than to apply it in order to understand nature. Oh, wait, that's why we study science, isn't it.But they do, hence there is order to the universe, else why study science?