The Misconceptions of Evolution
By Ransom R. Traxler
In spite of our technical society and our public school system,
most people believe in many misconceptions about evolution. This is due,
in part, to educators who wish to avoid controversy or who do not fully
understand the subject they teach. Furthermore, anti-evolutionists
knowingly propagate these erroneous beliefs in their religious crusade
against science. As a systematic biologist (in whose field organic
evolution begins), I wish to correct a few of these myths. These
statements are not just personal beliefs--they are facts and concepts
supported by volumes of research and agreed upon by those scientists who
are most knowledgeable about the subject.
_Evolution is just a theory._
Evolution is a valid scientific theory, just like electricity, gravity,
atoms, light, cells, and disease-causing germs are valid scientific
theories also. For example, we are taught that the earth orbits the sun;
scientists call this the heliocentric theory. A theory in science is a
highly-tested, verified and demonstrated explanation for observed facts,
not "a guess or conjecture." To state that evolution is only a theory is
the same as stating that gravity is only a theory. Knowing this, who
would still wish to contest it by jumping off a building?
_Evolution is not based on facts._
There are facts and theories about evolution. The facts of evolution are
that the earth is billions of years old and that the life on it has
changed over that time. The fossil record is clear that life living today
differs greatly from that living, say, 300 million years ago. In between
we have a vast collection of fossils that, as one looks at younger and
younger specimens, become more modern-looking. The theories of evolution
are about what caused this metamorphosis. We know several mechanisms that
can produce changes in organisms: natural selection, genetic drift, the
founder effect, genetic recombination and mutations are just a few. The
debates scientists have are about the mechanism of evolution, not the fact
that it has occurred. Practicing scientists do not doubt evolution.
_Darwin invented evolution._
Would one say that Newton invented gravity or Einstein invented time? The
evidence for evolution had been known by scientists for centuries. In the
sixteenth, seventeenth and eighteenth centuries the early naturalists, who
were also clergy, discovered that the earth was very old and that life was
very different in the past. However, evolution was not generally accepted
because no one knew how it was happening. In the nineteenth century
Darwin was the first to propose a valid mechanism to explain what produced
evolution. Since then his mechanism, natural selection, has been
thoroughly tested and was rapidly accepted by scientists everywhere.
Likewise, continental drift was thought of since Benjamin Franklin's time,
but it was not until the 1960's that a valid mechanism, plate tectonics,
was discovered. Today scientists accept it as they accept evolution. We
now have several mechanisms that explain how evolution occurs, discovered
by many scientists over the last century.
_Evolution is caused by blind chance._
In all aspects of evolution (cosmic, chemical and organic) natural laws
and principles can explain what has occurred. These influences act as a
controlling force that guides evolution to predictable outcomes. Cosmic
evolution is governed by the laws of physics, not chance. Gravity and
nuclear reactions cause the birth and death of stars and planets (we have
witnessed these events with telescopes). Chemical evolution abides by
the laws of molecular reactions which can produce complicated organic
molecules naturally (we have witnessed this in the laboratory). Organic
evolution is directed by biological principles such as natural selection
and genetics, which again we have observed in the laboratory. The odds
are, at the moment of conception, over 70,000,000,000,000 (70 million
million) to one that your genes will not come together in the combination
now in your body. However, you are here and it was all controlled by
the principles of genetics. Natural forces and laws govern and direct
evolution, not "blind chance."
_Complex organisms, such as ourselves, must have been
designed by a more complex, intelligent creator._
This argument has been shown to be logically and scientifically false for
at least a hundred years, yet it is still used by anti-evolutionists in
their religious crusade. Logically for their argument to be true, two
criteria must be adhered to:
One: everything as complex as a living organism must have
been designed. No exceptions, or else we could be here not
by design but by the natural process of evolution.
Two: everything as complex as a living organism must have
a designer even more complex than it is. If this was not
true, then we could have been designed by a less complex
primate who, in turn was designed by a less complex mammal,
and on and on to a primordial cell. This is a teleologic
view of evolution.
Since the two conditions above must be true or the design argument fails
miserably then who designed our more-complex-than-we-are-designer? And
who, in turn, designed him? These two conditions require an infinite
number of designers, each one more complex than the one he designed.
Scientifically, there is another choice instead of a designer or blind
chance; evolution, which is guided by the laws and forces of nature. We
have documented cases of changes produced by natural selection, which
acts as a "designing force" to make organisms better suited to their
environment. However, it is not as perfect as an omnipotent designer
would be.
There are thousands of examples of poor design in nature. Many organisms
use modified organs that barely suit their need; many organisms have
vestigial parts that do not help them but could actually harm (wisdom
teeth and appendix in us, hind limbs in whales and snakes, and much more).
If this is the work of a designer, then it was a terrible job. We, with
artificial selection (breeding) and genetic changes, are improving on
some of the poor designs of nature.
_Creationism is another scientific explanation._
This is definitely not true. Creationism is a religious belief based on
the [Christian] Bible. Evolution is a scientific explanation based on
observation, experimentation and objective evaluation. None of the vast
store of scientific data we have supports a literal interpretation of the
[Christian] Book of Genesis. The small amount of "scientific" evidence
propagated by "scientific creationists" has been investigated by the
scientific community using the scientific method (just like evolution has
been for over 150 years). Most of these claims were abandoned by
scientists over two centuries ago because the data and experiments did
not support them. The newest claims were found to be distortions and
misrepresentations of firmly established data. Creationism is a
religious belief and, as such, everyone is free to believe it or not; but
as a scientific explanation, it has no support whatsoever in fact.
_Creationism should be given equal time in the science
class because so many people believe in it._
Many people believe in astrology; should it be given time in an astronomy
class? Or how about alchemy in a chemistry class? Numerology in a
mathematics class? Atlantis and ancient astronauts in a history class?
Flat-earth in a geography class? If some people believe that 6x9=42,
should we give the students two multiplication tables and let them choose
which one they will use? The science classroom is not where religious
beliefs should be presented as fact for the student to accept or reject
as he/she wants. Instead, the classroom is where the current knowledge
in the field is presented to students to increase their understanding of
that subject.
_Evolution should not be taught because it is unimportant._
Evolution is to biology as atoms are to chemistry. It is the unifying
concept that connects genetics, anatomy, medical science, taxonomy and
many others into a comprehensible framework. It is THE central idea of
biology that ties together all its subparts. Evolutionary biology
explains the distribution of life on this planet, tissue rejection in
transplants, and how our body works. In other fields cosmic evolution
is the center of astronomy (it tells us how the universe and stars
function) and earth evolution is the basic concept of geology (it tells
us how the earth came to be as it is today).
What would chemistry be like without atoms to explain how and why
chemicals react as they do; or physics without the concept of energy
being able to convert into different forms to explain how a steam engine
works? What if a teacher felt that atoms or energy were unimportant and
ignored them in his/her chemistry or physics class? Without the why and
how explained by evolution, much of science becomes a meaningless
collection of facts with no logical association or understanding.
_Evolution should not be taught because it is contrary
to some people's religious beliefs._
First of all our government is religiously neutral according to our
Constitution. Therefore, religion cannot be a factor in determining the
curriculum. Secondly, the teacher has the obligation to present the
students all the knowledge of the subject being taught based on their
level of understanding. Any science teacher who fails to present evolution
properly to the students betrays the trust placed in them by the public
and acts in an unprofessional manner.
_Evolution should not be taught because it promotes the
religion of secular humanism._
Evolution is a science and that is all it is. People are free to form
whatever philosophies or religions they want based on whatever source
they want. Some people have formed their belief system around old books
variously translated through the years. Primitive people use [a] [god,
gods, goddess, or goddesses] to explain ordinary occurrences in nature
because that is the only way they can comprehend the world around them.
Scientists of all religions accept evolution because it is the best
scientific explanation we have not because of some religious reason. As
a religiously-neutral science, it should be taught in the classroom.
_Evolution is anti-God._
Impossible, for science just like mathematics is neutral towards any
religious belief. Science and religion are two separate philosophies
dealing with different realms. Religion deals with the supernatural and
cannot be supported by experimentation--it must be accepted by faith
alone. Science deals with the natural universe and its discoveries can be
confirmed or disproved by experimentation -- scientific ideas are accepted
by the scientific community based on evidence. Evolution, as any science,
can never say anything about the "Ultimate Cause" of the universe and our
existence; these can only be answered by religion. Since these two
philosophies deal with different realms, there is no basic conflict between
them.
_Evolutionists are atheists._
Many scientists and science teachers are devoutly Christian or Jewish. [Or
deists, Wiccans, Pagans, Muslims... - flr] Some of the great founders of
evolutionary biology were strong theists. A few of us are atheists. This
is because we are able to separate the two realms of our lives--the spiritual
and the material. Since evolution does not deny the existence of a Supreme
Being, one is free to hold whatever beliefs there are in one. Saying that
"evolutionists are atheists" is just like saying "apple-lovers are orange-
haters." One can like (or dislike) both apples and oranges.
_Scientists believe in evolution as their religion since
they do not believe in God._
The religious beliefs of scientists are as varied as it is in any group of
professional people. Unfortunately our secondary school textbooks and
various media sources like to use the phrase "Scientists believe..."
whenever they present evolution as if the scientists hold a unique
religious belief. This is especially harmful when facts are presented,
because it gives the student or layperson the idea that the facts are not
supported by evidence and can be accepted as questionable. What would
happen if a teacher were to say, "Mathematicians believe that 5x6=30" or
"Historians believe that we fought a civil war in the 1860's?" Instead of
saying "Scientists believe in evolution" one should say "Scientists accept
evolution based on the overwhelming objective evidence in its favor."
_Evolution is "The Big Lie" that Satan tempted Eve with
in the Garden of Eden._
This may not sound like a scientific statement, but it is repeated
frequently by the "scientific creationists." In fact one such group, the
Institute for Creation Research, publishes a book entitled "The Lie:
Evolution" with a large poster showing a serpent holding an apple marked
EVOLUTION. These people state that scientists lie while they spread
"The Truth." So then what is "The Truth?"
-=-
Creationists are the masters of prevarication. In their
presentations they frequently make false statements about science and
scientists; anyone familiar with biology or geology can spot them. Then
why do they do it?
One reason could be that they are ignorant about science and,
therefore, make many mistakes. However, they say that they are experts
on evolution and have some degree in engineering or theology to prove it.
A practicing scientist knows these statements are false and ridiculous;
many of us have exposed them as such. Then why are they still frequently
repeated?
The other possibility is that these anti-evolutionists know the
statements are false, yet repeat them anyway. Many of the "scientific
creationist" debaters make statements they cannot prove; in fact, many
scientists have proved their claims as false and they have admitted their
error. Yet in their next debate or presentation, they repeat these
falsehoods unabatedly.
I can show anyone the scientific evidence to support what I said
above. This is more than what "scientific creationists" can do. In this
country anybody can hold whatever religious beliefs they want to; however,
when they say that these beliefs are scientific and should be taught in
public schools, they must produce evidence to support what they say. I
have always found it amazing how many falsehoods and distortions are said
by those spreading "The Truth."
There are many more misunderstandings about evolution which a quality
science education will expose. Until such teaching becomes the standard,
we scientists and educators need to reveal these myths for what they
are--an attempt to mislead the public and discredit the scientists and
teachers who have devoted their lives to increasing our knowledge of the
universe solely for the purpose of converting students and the public to
a specific religious belief system.
[This article was the basis for Traxler's lecture before the
Missouri Association for Creationism meeting in April, 1991.
Ransom R. Traxler is the Director of the St. Louis
Association for the Teaching of Evolution (SLATE), P.O. Box 462,
O'Fallon, IL 62269-0462. This article reprinted with permission
from the May/June 1991 issue of _The American Rationalist_.
Permission to reprint this article must be obtained in writing from
_The American Rationalist_, P.O. Box 994, St. Louis, MO 63188.]
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