Basic
Worldview:
103
Science, the Bible,
and Creation
Origins
- Section Three:
Evolution, Speciation Rates
Origins - Section One: Introduction
and the Basics
Origins - Section Two: Premature
Dismissals
Origins - Section Two: Application
of the Basics
Origins - Section Three: Creation
Origins - Section Three: Evolution,
Origin of Life
Origins - Section Three: Evolution,
Environment for Life 1
Origins - Section Three: Evolution,
Environment for Life 2
Origins - Section Three: Evolution,
Another Planet
Origins - Section Three: Evolution,
Origin of Species
Origins - Section Three: Evolution,
Speciation Factors
Origins - Section Three: Evolution,
Speciation Rates
Origins - Section Four: Time and
Age, Redshift
Origins - Section Four: Philosophical
Preference
Origins - Section Four: Cosmological
Model 1
Origins - Section Four: Cosmological
Model 2
Origins - Section Four: Dating Methods,
Perceptions, Basics
Origins - Section Four: Global Flood
Evidence
Origins - Section Four: Relative
Dating
Origins - Section Four: Dating and
Circular Reasoning
Origins - Section Four: The Geologic
Column
Origins - Section Four: Radiometric
Dating Basics
Origins - Section Four: General
Radiometric Problems
Origins - Section Four: Carbon-14
Problems
Origins - Section Four: Remaining
Methods and Decay Rates
Origins - Section Four: Radiometric
Conclusions, Other Methods
Origins - Section Five: Overall
Conclusions, Closing Editorial
Origins - Section Five: List
of Evidences Table
Origins Debate Figures and
Illustrations
Evolution
on the Origin of Species:
Evidence and the Rate of Speciation
In
the beginning of this segment on “Evolution and the
Origin of Species,” we stated that there were 2 crucial
parts of our definitional statement that would need to be
established as acknowledged by evolutionary scientists and
secular sources. We also said that one of these crucial parts
pertained to evidence and the other pertained to the explanatory
mechanisms of evolutionary theory itself. In the preceding
portion, we examined evolution’s mechanism for the origin
of species, the process of beneficial mutation. And, given
the criteria and probabilities asserted in quotes from secular
and evolutionary sources, we concluded that beneficial mutation
simply is not a tenable mechanism for the origin of species.
During
this portion, we will turn to the remaining point, which focuses
on the observable evidence in the fossil record to see what
support might be found in it for evolution’s general
theory of speciation, even if evolution’s mechanism
isn’t at all sufficient. However, this portion of our
expanded commentary will not leave the examination of evolution’s
mechanisms entirely behind. As we will see below, the evidence
of the fossil record raises a critical question about evolution’s
mechanisms on another level. And so, this segment will also
continue to address the fundamental question of whether or
not evolution actually has a working theory for how the origin
of species occurs. And as we will see, in addition to the
inadequacies of beneficial mutation, evolution’s explanations
remain unresolved on other aspects as well, leaving evolution
effectively without a coherent theory on the subject of speciation
(and the origin of new kinds of organisms). Once again, it
will be demonstrated that these points are admitted by secular
and evolutionary sources.
This
segment will be broken down to address 3 fundamental issues:
1) What present
observation and the fossil record cannot
show, 2) What
present observation and the fossil record do
not show, and 3)
What present observation and the fossil record do
show. And, as we will demonstrate, all 3 of these issues directly
relate to whether or not the evolutionary origin of species
is falsifiable, and therefore, whether or not it is scientific.
First,
we will discuss what the fossil record cannot show. The first
stop on this issue is to recall a fundamental requirement
of the scientific method, which we covered at length earlier
on in this study. Specifically, we saw that in order to be
considered “truly scientific” a theory has to
be at least falsifiable in principle by empirical evidence.
As we also noted, empiricism is the “philosophical outlook
of most scientists” and is the idea that “beliefs
are to be accepted only if they have been confirmed by actual
experience.”
“Empiricism
– a philosophical
approach that views experience as the most important source
of knowledge. It is the philosophical outlook of most scientists.”
– Worldbook Encyclopedia, Contributor: W. W. Bartley,
III, Ph.D., Former Senior Research Fellow, Hoover Institution
on War, Revolution, and Peace, Stanford University.
“Empiricism
– in philosophy, the
attitude that beliefs are to be accepted and acted upon only
if they first have been confirmed by actual experience.”
– Encyclopaedia Britannica 2004 Deluxe Edition
“Science
– A theory
developed by a scientist cannot
be accepted as part of scientific knowledge until it has been
verified by the studies of other researchers. In fact,
for any knowledge to
be truly scientific, it must be repeatedly tested experimentally
and found to be true. This
characteristic of science sets it apart from other branches
of knowledge. For example, the humanities, which include
religion, philosophy, and the arts, deal with ideas about
human nature and the meaning of life. Such ideas cannot be scientifically proved.
There is no test that tells whether a philosophical system
is "right." No one can determine scientifically
what feeling an artist tried to express in a painting. Nor
can anyone perform an experiment to check for an error
in a poem or a symphony.” – Worldbook, Contributor:
Joseph W. Dauben, Ph.D., Professor of History and the History
of Science, City
University of New York.
“Empiricism,
Criticism and evaluation, Criticism and evaluation –
One important philosopher of science, Karl
Popper, has rejected the inductivism that views the growth
of empirical knowledge as the result of a mechanical routine
of generalization. To him it is falsifiability by experience
that makes a statement empirical.” – Encyclopaedia
Britannica 2004 Deluxe Edition
“Science,
philosophy of, Historical development, The 20th-century debate:
Positivists versus historians – Meanwhile, the qualified
Realism of Planck and Hertz was carried further by such men
as Norman Campbell, an English physicist known for his sharpening
of the distinction between laws and theories, and Karl
Popper, an Austro-English philosopher recognized for his theory
of falsifiability, both of whose views reflect the explicit
methodology of many working scientists today.” –
Encyclopaedia Britannica 2004 Deluxe Edition
“Positivism,
Logical Positivism and Logical Empiricism, The earlier Positivism
of Viennese heritage, The verifiability criterion of meaning
and its offshoots – It was in coming to this juncture
in his critique of Positivism that Karl Popper, an Austro-English philosopher
of science, in his Logik der Forschung (1935; The Logic of
Scientific Discovery, 1959), insisted
that the meaning criterion should be abandoned and replaced
by a criterion of demarcation between empirical (scientific)
and transempirical (nonscientific, metaphysical) questions
and answers—a criterion that, according to Popper, is to be testability, or, in
his own version, falsifiability; i.e., refutability. Popper
was impressed by how easy it is to supposedly verify all sorts
of assertions—those of psychoanalytic theories seemed
to him to be abhorrent examples. But the decisive feature, as Popper
saw it, should be whether
it is in principle conceivable that evidence could be cited
that would refute (or disconfirm) a given law, hypothesis,
or theory.” – Encyclopaedia Britannica 2004 Deluxe
Edition
One
of the focuses of this segment will be a demonstration of
how this scientific criterion applies to the evolutionary
theory for the origin of species. Evolutionary theory centers
on the idea that each type of plant or animal today came from
previous distinct and different types of organisms.
“Evolution
– theory in biology postulating that the various types of animals and plants have their origin in other preexisting
types and that the distinguishable differences are due to
modifications in successive generations. The theory of
evolution is one of the fundamental
keystones of modern biological theory.” –
Encyclopaedia Britannica 2004 Deluxe Edition
In
evolutionary theory, this process takes thousands of generations
and thousands of years, as indicated in this familiar quote
from the previous segment.
“Evolution,
The process of evolution, Evolution as a genetic function,
The origin of genetic variation: mutations, Gene mutations
– Mutation rates have been measured in a great variety of organisms,
mostly for mutants that exhibit conspicuous effects. Mutation rates are generally lower in bacteria
and other microorganisms than in more complex species.
In humans and other multicellular organisms,
the rate typically ranges from about one per 100,000 to one per 1,000,000 gametes.” – Encyclopaedia
Britannica 2004 Deluxe Edition
As
we can see from the next quote, within broader evolutionary
theory, the shortest potential time scale for the transformation
of one species into another or from one form or type into
a new form or type is thousands of years, as asserted by the
punctuated equilibrium version of evolutionary theory.
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE - For this reason, in
part, a number of evolutionists-most notably
Stephen Jay Gould of Harvard University and Niles Eldredge
of the American Museum of Natural History-have
proposed a variant concept of "punctuated equilibria"
for species evolution. According
to this concept, species do in fact tend to remain stable
for long periods of time and then to change relatively abruptly-or
rather, to be replaced suddenly by newer and more successful
forms. These sudden
changes are the
"punctuations" in the state of equilibrium that
give this concept its name. Although
these proposed periods of rapid change would be abrupt
only in terms of the geological time scale and would
actually occur over periods of thousands of years, most
evolutionists tend to consider the punctuated-equilibrium
concept only another possible mode of evolutionary change
that could take place along with the processes described by
the modern synthesis, rather than as a supplanting model for
evolution theory.” – Worldbook, "Evolution,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
In
contrast, gradualist evolutionary view, the alternative to
punctuated equilibrium, asserts that transformations take
even longer than thousands of years.
“Gould,
Stephen Jay – Unlike the gradualist theory, which would
have species evolve gradually over long periods of time, the
punctuated equilibrium theory holds that the evolution of
a species consists of rapid changes in small, relatively
isolated populations, followed by long periods of stability.”
– "Gould, Stephen Jay," Microsoft® Encarta®
Encyclopedia 99. © 1993-1998 Microsoft Corporation. All rights
reserved.
As
a side note, both punctuated equilibrium and the alternative
“gradualist” view will be defined more thoroughly
just a little while later in this segment. The point here
is simple. These timeframes are much longer than any human
being could observe or has even been observing. In fact, as
we’ve seen earlier, evolutionists actually assert that
the process of evolution is so subtle that it really cannot
be detected. In a debate with creationist Dr. Kent Hovind,
Wayne State
University
evolutionary biologist Dr. William Moore stated this explicitly.
“This
is why evolutionary biologists have a difficult time defining
species. There are these intermediate situations…It
is by a process of descent with modification through insensibly
distinct intermediate forms. It’s a continuum. And
as I mentioned earlier that’s the problem with defining
species...” – Evolutionary Biologist Dr. William
Moore, “The History of Life: Creation or Evolution?”
Debate: Dr. Kent Hovind vs. Dr. William Moore at Wayne State
University in Detroit,
Michigan, Creation Science
Evangelism, Pensacola, FL,
www.drdino.com, Windows Media Video
Consequently,
not only does the evolution of species take too long for anyone
to observe but, according to Dr. Moore, it is so slow, subtle,
and “insensibly distinct” that it cannot actually
be observed even in principle. Britannica Encyclopedia also
acknowledges that the inability to detect when speciation
has occurred is a fact of evolutionary theory.
“Evolution,
The process of evolution, Species and speciation, The concept
of species – It is, then, clear that…individuals
of a species are able to interbreed with one another but not
with members of other species…Although the criterion for deciding whether
individuals belong to the same species is clear, there may
be ambiguity in practice for two reasons…The other reason
for ambiguity is rooted in the nature of evolution as a gradual
process…Since the process is gradual, there is not a
particular point at which it is possible to say that the two
populations have become two different species.”
– Encyclopaedia Britannica 2004 Deluxe Edition
So
as we can see, according to both Dr. Moore and Britannica
Encyclopedia, the evolution of new species is so gradual as
to make it impossible to detect. This inability to presently
observe or detect the process of speciation occurring leaves
all of us in the following situation. We cannot observe the
actual transition of one type of plant or animal into a new,
distinct type. We can only observe the presence of different
existing types of plants and animals that already cannot interbreed.
It must be pointed out here that in terms of what we can actually
observe, all that we can actually observe is static lineages
of organisms that already cannot interbreed. This is fundamentally
confirming of the creationist theory concerning kinds, a theory
which predicts that there will be no evidence ever observed
of one kind of organisms evolving into another but instead
that each kind only reproduces its same kind. It would appear
that this prediction is irrefutably true: it is simply not
even possible to observe the arrival of a new species or kind.
Consequently,
since we cannot observe speciation today, the only potential
way to observe transformations of one species into another
is the fossil record. While evolution takes too long for any
human to observe its occurrence, in evolutionary theory the
fossil record spans the history of the earth. And so, at least
in principle, there is a “recording” that has
been going on long enough to “record” evolution
and allow us to see what happened over periods of time that
are longer than human beings actually live.
However,
the observational problems discussed above are not limited
only to what we currently can observe. These problems infect
the fossil record as well. There are only 2 ways to identify
distinct species: distinct form (also known as morphology)
and the inability to interbreed. Neither of these methods
works for the fossil record.
On
a definitional point, it should be noted that the term “morphology”
simply refers to “the form and structure of an organism
or any of its parts.”
“Morphology
– 1a: a branch of biology that deals with the form and structure of animals and plants b: the form and structure of an organism or
any of its parts.” – Merriam-Webster's Collegiate
Dictionary
According
to Britannica Encyclopedia, although “different species”
are “recognized by their different morphologies”
(forms and structures), species that can no longer interbreed
“are often morphologically indistinguishable”
from one another in the fossil record. Furthermore, even if
there were some minor morphological differences between them,
by its very nature the fossil record simply cannot reveal
whether or not 2 fossilized organisms were capable of interbreeding.
As indicated in the quote below, the fossil record simply
does not provide any information regarding the ability to
interbreed. And according to Britannica, this problem of demonstrating
speciation from the fossil record is considered “insuperable,”
which means that this problem simply cannot be solved.
“Evolution,
The process of evolution, Patterns and rates of species evolution,
Reconstruction of evolutionary history, Gradual and punctuational
evolution – Species are groups of interbreeding natural
populations that are reproductively isolated from any other
such groups. Speciation involves, therefore, the development
of reproductive isolation between populations previously able
to interbreed… Paleontologists recognize species
by their different morphologies as preserved in the fossil
record, but fossils cannot provide evidence of the development
of reproductive isolation because new species that are reproductively
isolated from their ancestors are often morphologically indistinguishable
from them…This situation creates an insuperable difficulty for resolving
the question whether morphological evolution is always associated
with speciation events. If
speciation is defined as the evolution of reproductive isolation,
the fossil record provides no evidence of a necessary association
between speciation and morphological change.” –
Encyclopaedia Britannica 2004 Deluxe Edition
Additionally,
the fossil record only shows gross morphological structure,
which means obvious, external morphological structure. It
cannot reveal any potential changes that might have been taking
place in the “genetic makeup” of the overall organism.
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE – Fossils primarily show gross morphological changes, whereas changes
taking place in genetic makeup could be extensive even though
overall body structures do not reveal these shifts in populations
of species.” – "Evolution," Microsoft®
Encarta® Encyclopedia 99. © 1993-1998 Microsoft Corporation.
All rights reserved.
These
limitations simply make it impossible to use the fossil record
to determine whether or not organisms that look alike in terms
of form or structure were different species or even in the
process of becoming different species. And this is why Microsoft
Encarta’s article on evolution concludes that “the
small changes that would make up gradual evolutionary development”
are not “of a nature that would be apparent in the fossil
history of a species.”
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE – In addition,
the small changes that would make up gradual
evolutionary development according
to the modern synthesis are themselves not necessarily of
a nature that would be apparent in the fossil history of a
species, however complete it might be over a given stretch
of time.” – "Evolution," Microsoft®
Encarta® Encyclopedia 99. © 1993-1998 Microsoft Corporation.
All rights reserved.
Simply
put, not only can we not detect or observe the process of
speciation actually occurring today, but the fossil record
cannot reveal the genetic buildup of beneficial mutations
necessary for speciation, whether or not organisms that have
the same basic structure could interbreed, or even whether
or not organisms of slightly different size and shape might
be able to interbreed. And since the buildup of new genetic
material and the inability to reproduce are evolution’s
defining marks of speciation (specifically the origin of new
kind of organisms), the fossil record is inherently incapable
of supporting either of these 2 essential aspects of the evolutionary
origin of species, even in principle. Once again, the changes
are either so small or so undetectable that they escape the
fossil record just as much as they inherently evade observation
today.
Consequently,
this demonstrates our first point, what present observation
and the fossil record cannot
show.
What
happens to falsifiability if the evolution of species cannot
be observed today or in the fossil record? How can it be confirmed?
How could it be disconfirmed, disproved, or falsified even
in principle if it is of such a nature that there will be
no way to observe it even in a fossil record of billions of
years? What possible evidence could there conceivably ever
be that could falsify a theory that by its very nature escapes
detection and recording in the observable evidence? These
facts make evolutionary speciation beyond detection and beyond
either confirmation or disconfirmation by the available evidence,
which relegates this theory to the realm of the unscientific.
This
leads us to our second issue, what present observation and
the fossil record does
not show us. The fossil record does not contain transitional
forms showing one species or kind of organism in transition
to becoming another. If the fossil record is taken to be a
record of biological history on earth, then the fossil record
actually records that there were no transitional forms where
the actual evolution from one species or kind to another is
taking place.
So
much is this acknowledged within the evolutionary community,
that it has become a subject of debate centering on the 2
alternative views of punctuated equilibrium and gradualism.
As we examine these 2 versions of how the origin of species
occurs, we will see further demonstration of how the evolutionary
theory of speciation is constructed in such a way as to evade
any potential falsification by observable. The two alternate
views on speciation within the evolutionary community center
on exactly how evolutionary speciation occurs in the real
world, does it happen slowly and gradually or more all-at-once
in quick, shorter bursts.
“Fossil,
IV LEARNING FROM FOSSILS, A Evolution – The fossil record suggests that evolution may have progressed at different
rates-sometimes gradually, and at other times in short bursts…This
is difficult to prove, however, because sedimentation is rarely
continuous over long periods of time.” – "Fossil,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
These
2 views are known as punctuated equilibrium, which asserts
the position of quick, large-scale changes, and gradualism,
which asserts the position of slow, gradual changes. To understand
these 2 evolutionary interpretations of the fossil record
and the reasoning behind each of them, we first need to understand
a few simple facts about the fossil record itself.
The
first fact is that there are gaps in the fossil record. The
fossil record is divided up into strata. And where one stratum
meets the strata above or below it, there is estimated to
be tens of thousands of years of history that is unrecorded
between any 2 strata.
“Evolution,
Patterns and rates of species evolution, Reconstruction of
evolutionary history, Gradual and punctuational evolution
– The fossil record indicates that morphological
evolution is by and large a gradual process. Major evolutionary
changes are usually due to a building up over the ages of
relatively small changes. But the
fossil record is discontinuous. Fossil
strata are separated by sharp boundaries; accumulation
of fossils within a geologic deposit (stratum) is fairly constant
over time, but the transition from one stratum to another
may involve gaps of tens of thousands of years.” –
Encyclopaedia Britannica 2004 Deluxe Edition
The
strata themselves, which is where the fossils are present,
contain no transitional forms, the “missing links”
where one species or kind of organism is literally turning
into another and actually appears somewhere between the two.
The fact that the transitional forms are not in the fossil
record was understood by Darwin from the onset of the theory of evolution.
“Intermediate
links? Geology assuredly does not reveal any such finely graduate
organic chain; and this, perhaps, is the
most obvious and serious objection which can be urged against
the theory [of evolution].” – Charles Darwin,
The Origin of Species, p. 323 (Cited on “A Question of Origins,” Roger Oakland,
Eternal Productions, Copyright 1998, www.creationscience.com,
43 minutes)
And
it continues to be a recognized fact among evolutionists today.
“Both
the origin of life and the
origin of the major groups of animals remain unknown…”
– Alfred G. Fisher, evolutionist, Grolier
Multimedia Encyclopedia, 1998, fossil section (Cited on
“A Question of Origins,” Roger Oakland,
Eternal Productions, Copyright 1998, www.creationscience.com,
51 minutes, 50 seconds)
(For
an illustration of how the fossil record works in evolutionary
theory as described in the numerous quotes below, please see
Gaps in the Fossil Record
Figure 1.)
In
other words, it continues to be a known fact among evolutionists
that transitional forms, intermediates, or “missing
links” are not found in the fossil record. On this note,
the following quote states that the absence of transitional
forms and gradual changes in the fossil record is “a
notable fact observed in the fossil record” and, as
such, the meaning of this fact is “one of the issues
that is currently being debated” among evolutionary
theorists. This quote is important because it demonstrates
the fundamental reality that evolutionary theorists still
do not have an agreed-upon, working theory for this central
issue of evolution, how species (and kinds of organisms) originate.
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE – Because understanding of the actual evolutionary events that took place over
earth's long history depends largely on interpretations
of an incomplete fossil record, much latitude
remains for differences in such interpretations. One of the issues that is currently being
debated among theorists derives from a
notable fact observed in the fossil record. That is, when a new species appears in the record it usually does so abruptly
and then apparently remains stable for as long as the record
of that species lasts. The
fossils do not seem to exhibit the slow and gradual changes
that might be expected according to the modern synthesis.”
– "Evolution," Microsoft® Encarta® Encyclopedia
99. © 1993-1998 Microsoft Corporation. All rights reserved.
The
quotes below describe the difference between the punctuated
equilibrium view and the gradualist view in more detail. But
perhaps more importantly, the first quote below actually admits
that there are “discontinuities between the fossil record
and the Darwinian theory of evolution” and that punctuated
equilibrium is an attempt to “reconcile” the theory
with the observed facts of the fossil record.
“Eldredge,
Niles – American paleontologist who, with fellow paleontologist Stephen Jay Gould, developed the theory
of punctuated equilibrium, which states that evolutionary
changes occur in relatively short, abrupt bursts after long
periods in which few changes take place…After several
analyses of the trilobite fossil record, Eldredge concluded
that trilobites evolved in short, concentrated bursts, rather
than the gradual and continuous change predicted by Charles
Darwin in his theory of evolution.
In 1972 Eldredge collaborated with Gould to publish the theory of punctuated equilibrium, which attempts to reconcile the
discontinuities between the fossil record and the Darwinian
theory of evolution. In his theory of punctuated
equilibrium, Eldredge postulates that
species remain unchanged for hundreds of thousands of years,
only to be abruptly replaced by newer and more successful
forms-sporadic changes that appear as "punctuation"
in the fossil record.” – "Eldredge, Niles,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
“Gould,
Stephen Jay – He taught at Harvard University
from 1967. Gould (with Niles Eldredge of the American Museum
of Natural History) originated
the "punctuated equilibrium" theory of evolution,
a theory based on the fact that very few transitional forms
are found in the fossil record. Unlike the gradualist theory,
which would have species evolve gradually over long periods
of time, the punctuated equilibrium theory holds that the
evolution of a species consists of rapid changes in small,
relatively isolated populations, followed by long periods
of stability.” – "Gould, Stephen Jay,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
As
we can see, the issue sparking the debate is the acknowledged
fact that the fossil record contains no transitional forms.
This poses problems for the gradualist evolutionary view which
predicts that changes are constant, slow, and gradual. If
this were the case, constant, gradual intermediate forms should
have made it into the fossil record. But they are not and
instead, organisms remain unchanging, rather than evolving,
in the fossil record. On account of this discrepancy, or “discontinuity”
as Encarta describes it, the theory of punctuated equilibrium
was formulated to explain why the fossil record is a record
of organisms that don’t transition from one to the next.
According to punctuated equilibrium, the reason that evolution
has escaped recording in the fossil record is because it does
not happen slowly, constantly, and gradually as was traditionally
theorized, but instead happens abruptly, with major changes
occurring in brief time periods that are too short to be recorded
in the fossil record.
“Evolution,
The process of evolution, Patterns and rates of species evolution,
Reconstruction of evolutionary history, Gradual and punctuational
evolution – Some paleontologists have proposed that
the discontinuities of the fossil record are not artifacts
created by gaps in the record, but rather reflect the true
nature of morphological evolution, which happens in sudden
bursts associated
with the formation of new species.” – Encyclopaedia
Britannica 2004 Deluxe Edition
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE – That is, when a new species appears in the record it usually does so abruptly
and then apparently remains stable for as long as the record
of that species lasts. The fossils do not seem to exhibit
the slow and gradual changes that might be expected according
to the modern synthesis. For this reason, in part, a
number of evolutionists-most notably Stephen Jay Gould of
Harvard University and Niles Eldredge of the American Museum
of Natural History-have proposed a variant concept of ‘punctuated
equilibria’ for species evolution. According to
this concept, species
do in fact tend to remain stable for long periods of time
and then to change relatively abruptly-or rather, to be
replaced suddenly by
newer and more successful forms. These sudden changes are
the ‘punctuations’ in the state of equilibrium
that give this concept its name.” – "Evolution,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
Furthermore,
punctuated equilibrium asserts not only that “morphological
evolution” is “jerky” but also that evolution
occurs on 2 levels. First, the continuous aspect of evolution
is only on the genetic level, where it cannot be detected,
particularly in the fossil record. And second, the actual
visible, morphological change in structure occurs quickly,
in events that are too rapid to be recorded in the fossil
record.
“Evolution,
Patterns and rates of species evolution, Reconstruction of
evolutionary history, Gradual and punctuational evolution
– The proponents of the punctuated
equilibrium model propose not only that morphological
evolution is jerky but also that it
is associated with speciation events. They argue that
phyletic evolution—that is, evolution along lineages of descent—proceeds
at two levels. First,
there is continuous change through time within a population.
This consists largely of gene substitutions prompted by
natural selection, mutation, genetic drift, and other genetic
processes that operate at the level of the individual organism.
The punctualists maintain that this continuous
evolution within established lineages rarely, if ever, yields
substantial morphological changes in species. Second, they
say, there is the process of origination and
extinction of species, in which most morphological change
occurs. According to the punctualist model, evolutionary
trends result from the patterns of origination and extinction
of species rather than from evolution within established lineages.”
– Encyclopaedia Britannica 2004 Deluxe Edition
Consequently,
punctuated equilibrium is really a fantastic way of explaining
why no evidence for evolution can be found in the fossil record
even in principle and why all of the actual transitioning
and transitional forms necessary for evolution to occur are
not present in the recorded biological history that we call
the fossil record. Thus, punctuated equilibrium itself places
evolutionary theory outside the realm of falsifiabity, and
subsequently outside the realm of science. So, while gradualism,
which is the traditional established evolutionary view is
falsified by “discontinuities” (i.e. discrepancies)
it has with the fossil record, which have not been “reconciled,”
punctuated equilibrium solves the problem by becoming un-falsifiable
and unscientific.
However,
it should also be noted that in the mainstream of evolutionary
scientists, neither side, neither gradualism or punctuated
equilibrium, escapes the criticisms of falsification and un-falsifiability.
The reason for this is simply that most evolutionary scientists
have accepted a version of evolutionary theory that merges
gradualism and punctuated equilibrium together, asserting
that both occur depending on the circumstances.
“Evolution,
The process of evolution, Patterns and rates of species evolution,
Reconstruction of evolutionary history, Gradual and punctuational
evolution –Intensive study of a favourable and abundant
set of fossils may be expected to substantiate punctuated
or gradual evolution in particular cases. But the
argument is not about whether only one or the other pattern
ever occurs; it is about their relative frequency. Some
paleontologists argue that morphological evolution is in most
cases gradual and only rarely jerky, whereas others think
the opposite is true.” – Encyclopaedia Britannica
2004 Deluxe Edition
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE – Although these
proposed periods of rapid change would be abrupt only in terms
of the geological time scale and would actually occur over
periods of thousands of years, most evolutionists tend to consider the
punctuated-equilibrium concept only another possible mode
of evolutionary change that could take place along with the
processes described by the modern synthesis, rather than as a supplanting
model for evolution theory.” – "Evolution,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
Furthermore,
it should also be noted that evolutionary scientists admit
that there is no way to resolve this debate and decide which
of the 2 evolutionary theories is correct.
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE – The very incompleteness of the fossil record does not permit any such
clear choice to be made, because
the record of almost any species is highly selective over
geological time. In addition, the
small changes that would make up gradual evolutionary development
according to the modern synthesis are themselves not necessarily of
a nature that would be apparent in the fossil history of a
species, however complete it might be over a given stretch
of time. Fossils primarily show gross morphological changes, whereas changes
taking place in genetic makeup could be extensive even though
overall body structures do not reveal these shifts in populations
of species. Arguments from the known nature of small-scale
evolutionary change do not, in fact, necessarily establish
long-term evolutionary events, as following
either the model proposed by the modern synthesis or the one
proposed by punctuated equilibrium. Evolution may just
as well have proceeded along both routes.” – "Evolution,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
“Evolution,
The process of evolution, Patterns and rates of species evolution,
Reconstruction of evolutionary history, Gradual and punctuational
evolution – Whether morphological evolution in the
fossil record is predominantly punctuational or gradual is
a much debated question.
The imperfection of the record makes it unlikely that the
issue will be settled in the foreseeable future.”
– Encyclopaedia Britannica 2004 Deluxe Edition
Consequently,
the fact that evolutionary theory will never be able to determine
from the evidence which of these 2 views is correct inherently
leaves evolution without a working theory for the origin of
species. This demonstrates our second point, what present
observation and the fossil record do
not show. They do not show or reveal any detectable transitional
forms where one species or kind of animal is turning into
another.
This
leads us to our third issue, what present observation and
the fossil record do
show. While present observation and the fossil record cannot show the evolution of species occurring and do not show any transitional forms in
which one species or kind of animal is transitioning into
another, present observation and the fossil record do
show that new species and forms appear suddenly without the
gradual, transitioning precursors predicted and necessitated
by evolutionary theory AND species are static and “stable,”
“remaining unchanged” for the entire time they
appear in the fossil record.
“Earth,
geologic history of, Time scales – As was explained
earlier, at specific stratigraphic boundaries certain
types of fossils either appear or disappear or both in some
cases. Such biostratigraphic boundaries separate larger or
smaller units of time that are defined as eons, eras, periods,
epochs, and ages.” – Encyclopaedia Britannica
2004 Deluxe Edition
“Geologic
Time, I INTRODUCTION – Most
boundaries in recent geologic time coincide with periodic
extinctions and appearances of new species…II DIVISION
OF TIME – An explosion of invertebrate life marks
the end of the Proterozoic and the beginning of the Phanerozoic. The Phanerozoic
Eon started 570 million years before present and continues
into the present…The
Phanerozoic Eon is divided into the Paleozoic (570 million
to 245 million years before present), Mesozoic (245 million
to 65 million years before present), and Cenozoic (65 million
years before present to present) Eras. The Paleozoic Era is divided into six periods.
From oldest to youngest they are the Cambrian (570 million
to 500 million years before present), Ordovician (500
million to 435 million years before present), Silurian (435
million to 410 million years before present), Devonian (410
million to 380 million years before present), Carboniferous
(380 million to 290 million years before present), and Permian
(290 million to 240 million years before present). The Paleozoic began with the appearance of many different life-forms,
which are preserved as abundant fossils in rock sequences
all over the world. It ended with the extinction of over 90
percent of all living organisms at the end of the Permian
Period. The cause of this event is currently unknown…The Mesozoic began with the appearance of
many new kinds of animals, including the dinosaurs and the
ammonites, or extinct relatives of modern squid. The
Mesozoic ended with another major extinction in which about
80 percent of all living organisms died. This extinction
may have been the result of a large asteroid that crashed
into the earth on the present-day northern Yucatán Peninsula
of Mexico.” – "Geologic Time," Microsoft®
Encarta® Encyclopedia 99. © 1993-1998 Microsoft Corporation.
All rights reserved.
“Evolution,
The process of evolution, Patterns and rates of species evolution,
Reconstruction of evolutionary history, Gradual and punctuational
evolution – New species, characterized by small
but discontinuous morphological changes, typically appear at the boundaries
between strata, whereas
the fossils within a stratum exhibit little morphological
variation. That is not to say that the transition from
one stratum to another always involves sudden changes in morphology;
on the contrary, fossil forms often persist virtually unchanged through several geologic
strata, each representing
millions of years.” – Encyclopaedia Britannica
2004 Deluxe Edition
“Evolution,
VIII CURRENT EVOLUTIONARY DEBATE – Because understanding of the actual evolutionary events that took place over
earth's long history depends largely on interpretations
of an incomplete fossil record, much latitude
remains for differences in such interpretations. One of the issues that is currently being
debated among theorists derives from a
notable fact observed in the fossil record. That is, when a new species appears in the record it usually does so abruptly
and then apparently remains stable for as long as the record
of that species lasts. The
fossils do not seem to exhibit the slow and gradual changes
that might be expected according to the modern synthesis.”
– "Evolution," Microsoft® Encarta® Encyclopedia
99. © 1993-1998 Microsoft Corporation. All rights reserved.
“Eldredge,
Niles – In 1972
Eldredge collaborated with Gould to publish the theory of punctuated equilibrium, which attempts to reconcile the
discontinuities between the fossil record and the Darwinian
theory of evolution. In his theory of punctuated
equilibrium, Eldredge postulates that
species remain unchanged for hundreds of thousands of years,
only to be abruptly replaced by newer and more successful
forms-sporadic changes that appear as "punctuation"
in the fossil record.” – "Eldredge, Niles,"
Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft
Corporation. All rights reserved.
So,
in the same way that what we observe around us is that each
species and kind only reproduces its own kind, with no detectable
new species or kind emerging, the fossil record also only
records the existence of static lines of organisms that appear
without transitioning precursors and that remain unchanged
for the millions of years and all the strata in which they
appear in the fossil record. That is what present observation
and the fossil record do
show, static, un-evolving species and kinds of animals that
do not transition into one another but remain within the same
unchanging kind and species for the entire observable lineage.
(These
facts are summarized and illustrated in Gaps
in the Fossil Record Figure 1.)
Now,
at this point we can bring this segment back around to focus
on the scientific requirement of falsifiablility.
Does
evolutionary theory predict that there will be large numbers
of intermediate forms transitioning between one species and
another and one kind and another? Yes. Do we find that prediction
met by the evidence? No. Does evolution predict that species
and kinds are not static but transition from one into another
from the most basic to the most complex organisms on earth?
Yes. Does the evidence fit that prediction? No, the evidence
only shows static, non-transitioning, unchanging lineages
of animals. Consequently, when the evidence records only static,
non-transitioning, unchanging lineages that evolution denies
while showing no transitioning forms that evolutionary theory
requires, does evolutionary theory then subsequently redefine
the process of speciation in such a way that it can exist
even though its predictions are disconfirmed by the evidence?
Yes. And does that make the evolution of species un-falsifiable
by its very nature? Yes.
Therefore,
as we have seen admitted openly in the quotes above, evolution
is in a state in which its traditional theory is falsified
by the fossil record and in which the new solution that is
being proposed to avert the problems in the evidence actually
relegates evolution to the realm of un-falsifiability and
the realm of non-science. Furthermore, as we have also seen
from the quotes above, the nature of the fossil record is
such that it is admitted this dilemma for evolution is by
its nature permanently unsolvable. Thus, having established
this from secular and evolutionary sources, it is accurate
to define evolutionary theory as lacking any actual working
theory on the core issue of the origin of species.
5)
Although the production of a new or different organism
from an existing organism occurs in steps that are too subtle
and slow to be observed directly and although the fossil record
likewise contains no intermediate or transitional forms, it
is advanced that all the varieties of organisms on earth today
are not reproductively static, but came into being as generations
of offspring from one original organism changed over time
into new and different types of organisms. Beneficial gene
mutations are acknowledged to be the only potential automatic,
routine source for the arrival of these new types of organisms.
The frequency of beneficial mutations is acknowledged to be
extremely rare. And although there are probability obstacles
concerning any theoretical beneficial mutation being passed
on through reproduction and accumulating in an order and association
necessary for new functions to result, the arrival of every
variety of organism, every trait, structure, and organ, and
every gene on the planet today are attributed to the automatic,
routine process of beneficial mutation.
For
the record, we can consider what happens if we ask the same
questions above concerning creation theory and the evidence.
Does creationist theory predict that there will no intermediate
forms transitioning between one kind and another? Yes. Do
we find that prediction met by the evidence? Yes, the fossil
record and present observation reveal no detectable transitioning
organisms. Does creationism predict that kinds are static
and do not transition from one into another from the most
basic to the most complex? Yes. Does the evidence fit that
prediction? Yes, the evidence only shows static, non-transitioning,
unchanging lineages of animals. Are the predictions and defining
points of creation theory falsifiable in principle? Yes, the
discovery of the missing, identifiable transitioning forms
would disprove the creationist predictions that such forms
do not exist because the lineages of kinds are static. Is
creationism both scientific because it is falsifiable in principle
and at the same time supported by the observable evidence?
Yes.
As
we conclude our expanded commentary on the theory of evolution,
we see that evolution really lacks any working theory for
the 2 core issues at the very center of evolution itself,
the origin of life and the origin of species. The evolutionary
theory on the central issue of the origin of species faces
prohibitive factors on the underlying genetic level, on the
practical level of how speciation actually takes place in
real time and space, and on the level of the observable evidence
itself. Furthermore, our 2 definitional points for evolutionary
theory on the origin of species and the origin of life have
been shown to be accurate representations of secular and evolutionary
descriptions of evolutionary theory. This was summed up in
points 4 and 5 of our definition of evolutionary theory. While
points 1, 2, and 3 have not been addressed in this expanded
commentary on evolutionary theory, as promised they will be
covered in the remaining 2 sections of this series, the first
of which entails an up-close look at 2 particular avenues
of evidence that deal with the issue of time.