The Hemet Unified
School District in Southern California doesn't teach creationism. It
teaches Charles Darwin's theory of evolution. And that's got some people
up in arms.
But it's not the
creationists who are upset. It's the Darwinists.
Why? Because Hemet
wants to teach evolution as science, presenting evidence both for and
against it. The school board mandated that the teaching of evolution
include not only a "forceful presentation of well-established scientific
data and conclusions," but also a "candid scientific discussion of
anomalous scientific data, and unsolved problems and unanswered
questions."
To many Darwinists,
that's heresy. Testifying before the Hemet school board, University of
California-Berkeley paleontologist Kevin Padian, president of the
National Center for Science Education and co-author of California's
science education guidelines, said, "If I can say just one thing about
the teaching of evidence against evolution, there's a big secret: There
is no evidence against evolution."
Surprised? You should
be. Not by the secret, but by the audacity of Padian's claim. Indeed,
the evidence against evolution is probably stronger than ever. But
unlike students in Hemet, most kids will never hear this evidence.
Here's a quick primer on Darwinism and its woes:
Darwinism 101
The essence of
Darwin's theory is that all life can be traced to a single ancestor
through purely natural means. The plants, animals and other organisms
that surround us are products of random mutation and natural selection
-- or "survival of the fittest."
According to Darwin,
nature acts like a breeder, scrutinizing every organism. When useful new
traits appear, they are preserved and passed on to succeeding
generations, while harmful traits are eliminated. Over time, these small
changes accumulate until organisms develop new limbs, organs or other
parts. Eventually, organisms may change so drastically that they bear no
resemblance to their original ancestor.
All this happens, of
course, with no purposeful input. Chance and nature run the whole show.
The Fossil
Evidence
For decades, students
have been taught that the fossil evidence buttresses Darwin's theory.
Far from being a bulwark of support, however, it's always been a problem
that Darwin and his followers have had to explain away.
According to
Darwinism, the fossil evidence should show plenty of gradual changes. In
theory, it should be hard to tell where one species ends and another
begins. But that's not what the evidence shows.
Darwin himself
acknowledged the problems. In his 1859 book, The Origin of Species,
he noted:
"The number of
intermediate varieties, which have formerly existed on the earth,
[should] be truly enormous. Why then is not every geological formation
and every stratum full of such intermediate links? Geology assuredly
does not reveal any such graduated organic chain; and this, perhaps, is
the most obvious and gravest objection which can be urged against my
theory."(1)
Despite scientific
advances since Darwin's day, for evolutionsists the situation has not
improved. If anything, it's gotten worse. As the distinguished
paleontologist David Raup pointed out in 1979:
"We are now about 120
years after Darwin and knowledge of the fossil record has been greatly
expanded.... Ironically, we have even fewer examples of evolutionary
transition than we had in Darwin's time. By this I mean that some of the
classic cases of Darwinian change in the fossil record, such as the
evolution of the horse in North America, have had to be discarded or
modified as a result of more detailed information."(2)
Two features of the
fossil evidence refuse to go away: sudden appearance and stasis. Sudden
appearance refers to the fact that most fossil species did not develop
by the gradual transformation of their ancestors; rather they appeared
all at once, fully formed. Stasis, meanwhile, refers to the fact that
most fossil species change very little throughout their appearance in
the fossil record.
The discrepancy
between these two observations and Darwinism comes to a head with the
Cambrian Explosion, which paleontologists claim took place about 540
million years ago. In a flash of geological time, perhaps 5 to 10
million years, almost every animal phylum seemed to pop into existence
from nowhere, they say.
The word explosion
aptly describes what paleontologists say happened. In the language of
zoology, a phylum (phyla for plural) is the broadest category of animals
that exist. As opposed to a single species -- like a cheetah, a
cardinal, or a Mediterranean fruit fly -- a phylum encompasses a vast
array of creatures.
The phylum that
contains humans, for example, also contains newts, gerbils, hippos,
buzzards, and trout. It contains every animal with a backbone -- and
then some.
The differences
between phyla are even more extreme. For example, as much as humans
differ from catfish, they differ even more radically from squid or
slugs. In fact, organisms in different phyla are built according to
entirely different architectural themes.
What paleontologists
find in the Cambrian Explosion, therefore, is not the appearance of a
few new animals, but the appearance of animals so utterly distinct that
they belong to separate phyla. Stranger yet, according to evolutionist
chronologies, this biological "Big Bang" is followed by another half
billion years in which almost no new phyla appear.
This is poles apart
from what Darwin would have predicted. In Darwin's scheme, new phyla are
produced as species become more dissimilar. As species split off from
each other, they gradually become so dissimilar as to constitute new
genera, families, orders, classes and phyla -- the progressively
inclusive categories of living beings. Instead, the whole picture seems
to contradict Darwin's plan directly.
Darwin blames his
fossil woes on the fact that there are so many gaps in the anticipated
fossil discoveries. Many of his followers do, too. And there may be many
such gaps. But it raises the question: If it weren't for Darwinism, how
much reason would there be to doubt the adequacy of the fossil record?
At any rate,
Darwinists can hardly argue that the fossil evidence is a bulwark of
support for Darwinism.
Irreducible
Complexity
An even greater
challenge to Darwinism comes from recent advances in biochemistry.
In The Origin of
Species, Darwin wrote:
"If it could be
demonstrated that any complex organ existed, which could not possibly
have been formed by numerous, successive, slight modifications, my
theory would absolutely break down. But I can find no such case."(3)
In Darwin's time,
however, no one appreciated the excruciating complexity of living
things. Cells, for example, were thought to be little more than tiny
blobs of gel. But electron microscopes and advanced research techniques
have revealed a level of complexity in even the humblest bacterium that
makes a microprocessor or compact disk player seem primitive.
Biochemist Michael
Behe, author of Darwin's Black Box, points out that "the simplest
self-replicating cell has the capacity to produce thousands of different
proteins and other molecules, at different times and under variable
conditions. Synthesis, repair, communication -- all of these functions
take place in virtually every cell."
What's more, Behe
said, many systems in the cell are irreducibly complex.
"An irreducibly
complex system," Behe said, "is one that requires several interacting
parts to function, where if you remove or destroy one of the parts, then
the function is also destroyed."
An everyday example
is a mousetrap. A mousetrap has five parts: a platform, holding bar,
hammer, catch, and spring. When assembled there's no gradual improvement
of function. It doesn't work until every part is in place.
The same thing is
true inside a living cell. Many of its systems just won't work unless
every part is there. One such system is that which moves proteins from
one part of the cell to another.
Proteins don't just
float around freely inside of cells, Behe said.
"It turns out that
eucaryotic cells [cells that make up most living things] have a number
of different compartments, like rooms in a house. When a protein is made
it has to get from the compartment where it's made to the compartment
where it's supposed to be."
Consider what's
involved in simply moving a protein through a compartment wall. Cells
have two fundamentally different ways of doing this: gated transport and
vesicular transport.(4)
In gated transport,
the compartment wall is equipped with a "gate" and a chemical "sensor."
If a protein bearing the right "identification tag" approaches, the
sensor opens the gate and allows the protein to pass through. If one
with the wrong tag approaches, the gate stays shut.
Note the irreducible
complexity in even this simple example. All three components -- the
gate, the sensor, and the tag -- must be in place. There's no way to
produce the system in a gradual, Darwinian fashion.
If the tag is
missing, the gate won't open. The same is true if there's no sensor, or
if there's just a solid wall. And if there's a hole where the gate
should be, proteins will pass through haphazardly.
Vesicular transport
is even more complicated. As with gated transport, the compartment wall
is equipped with sensors. In this case, however, there's no gate.
Instead, when a protein bearing the right identification tag comes
along, the wall grabs it and then bulges outward, pinching off into a
little "bubble" (vesicle) with the protein inside.
The vesicle, which
has it's own identification tag, travels to its destination -- another
compartment. There, a sensor on the compartment recognizes the vesicle
and lets it merge with the compartment, spilling the protein inside.
Here we have two
sensors, two identification tags and the vesicle. The vesicle itself is
a complex object made of fats and special proteins that allow it to bud
off from the original compartment. And that's not to mention the other
proteins that help it merge with the destination compartment.
Furthermore, this
complexity is not limited to cell transport. In his forthcoming book,
Behe discusses several other examples, including blood clotting, the
chemistry of vision, the immune system, and the structure of cilia --
little hairlike contraptions that some cells use as oars.
In the face of
irreducible complexity, Darwinism falls mute. Because there is no
simpler level to which they can appeal, Darwinists can't explain how
these systems arose.
"If you look in the
professional science literature about how such systems arose, it turns
out that nobody has published anything," Behe told Citizen. "Scientists
simply assumed that it happened through evolution. But if you try to
call them on it they can't produce anything. They just kind of wave
their hands."
Evidence? What
Evidence?
Many Darwinists, of
course, are unfazed by the evidence against evolution. Like
paleontologist Kevin Padian, who is fully aware of the Cambrian
Explosion, they persist in saying that there is no evidence refuting
their position.
According to
Berkeley law professor Phillip Johnson, a critic of Darwinism and the
author of Darwin on Trial, this denial is not surprising, given
Darwinists' philosophical commitments.
"The heart and soul
of Darwinism is its unquestioning allegiance to naturalism," Johnson
told Citizen. "To a Darwinist, nature is all there is.
"If God exists at
all, He's more of an onlooker than a creator. That being the case,
Darwinism must be true, because nothing else works. God is out of the
picture, and the other naturalistic theories are even worse than
Darwinism."
Thus, in the minds
of Darwinists, there's no such thing as evidence against Darwinism --
only minor problems that science will eventually solve.
"Obviously we can't
expose children to this evidence, because they might be confused and
think that there really is evidence against Darwinists," Johnson said
wryly. "That's how the reasoning goes."
In addition,
Darwinists often muddy the water in public debate by using varying
definitions of the word "evolution." According to John Wiester, chairman
of the American Scientific Affiliation's Science Education Commission,
Darwinists use the word "evolution" in many different ways.
"Sometimes it simply
means 'change over time,' " Wiester said. "Other times it refers to
minor changes, like changes in the size and shape of bird beaks, or the
color of moths."
Still other times,
Wiester said, it refers to the grand Darwinian view that the living
world is a product of natural forces and chance. And they could be using
any one of these definitions when discussing evolution.
"Just when you think
you've nailed them with the evidence, they shift ground and say, 'Oh, I
was only talking about change over time' or something like that. Then
when the heat is off, they go right back to talking about Darwinism.
It's a shell game. You have to make them define their terms up front,"
Wiester said.
Darwinists think
their theory is an indisputable fact. They'd like everyone else to think
that, too. But it's not a fact, and students should have a chance to
weigh the evidence for themselves -- all the evidence.
Endnotes:
Darwin, C. (1979).
The Origin of Species. (Reprint of first edition.) New York:
Avenel Books, p. 292.
Raup, D. (1979).
"Conflicts Between Darwin and Paleontology," Field Museum of Natural
History Bulletin, vol. 50, no.1, p.25.
Darwin, C., p. 219.
There are three
different ways a protein can cross a compartment wall. The third way is
called transmembrane transport. For the purposes of this article,
however, it can be considered a form of gated transport.