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ESSAYS ON ORIGINS:
Species, Speciation and the Genesis Kind
by Dr. David N. Menton, Ph.D.
This version copyright (c) 1994 by:
Missouri Association for Creation
_____________________________________________________________________
[No. 16 in a series] October 1994, Vol. 4, No. 10
_____________________________________________________________________
In his "table talks," Martin Luther spoke of the Greek scholar
Cicero's proof for the existence of God:
"The best argument that there is a God -- and it often moved me
deeply -- is this one that he proves from generation of species;
a cow always bears a cow, a horse always bears a horse, etc. No
cow gives birth to a horse, no horse gives birth to a cow, no
goldfinch produces a siskin. Therefore it is necessary to
conclude that there is something that directs everything thus"
(_Luther's Works_, 1967 Fortress Press, p. 423).
As obvious as this principle of "like begets like" is in terms of common
experience, a central tenet of Darwinism is that in the course of time,
things are very different. Evolutionists seek to account for the origin
of all species (past and present) from a single, hypothetical,
primordial-life-form by means of progressive change and natural
selection.
Many think that Darwin solved the problem of speciation (development
of new species) with the publication of his book _On the Origin of
Species_. In fact, Darwin didn't really deal with the subject, much
less explain it. This failure to address what was seemingly the central
issue of his study stemmed from the fact that Darwin, like many of the
other English "transformationists" of his time, did not really recognize
the species as a distinct and real category of organisms. Rather, he
extrapolated the continuous (but limited) variation he saw among
pigeons, finches, dogs, etc. into a limitless and seamless continuum
among all organisms.
There were essentially two schools of biology in the 19th century
which we might call the "typological" or German school, and the
"populational" or British school. Most of the great German (and French)
biologists of this time viewed the species as a true type in nature.
Many British biologists, on the other hand, focused on the variation
among individuals within a species, and viewed the species as nothing
more than a statistical average of the population. This, in turn, led
many to conclude that the entire system of classification of organisms
was merely an arbitrary pattern imposed on what was in reality a
continuum. It is not surprising then that the concept of evolution grew
out of the British School, while many German and French naturalists were
among Darwin's strongest critics.
The first problem in discussing the origin of species is to define
just what we mean by a species. Complicating the definition of a
species is the use in scientific literature of terms such as: _sibling
species, subspecies_ and _semispecies_. Until nearly the later half of
this century, a species was considered to be any systematic unit
classified as a species by a competent systematist. More often than
not, an animal's anatomy (rather than its ability to interbreed) was
considered the primary determinant of a species. As a result of this
approach, ten interbreeding varieties of red foxes were once divided
into ten separate "species" merely on the basis of their color and
geographical distribution. The red foxes are now considered to
represent one species (_Vulpes fulva_) comprising 12 "subspecies." The
southern pocket gopher has 214 such subspecies! Subspecies then, is
simply another name for what has long been known as a variety.
The modern definition of a species tends to ignore anatomical
differences or similarities and focuses almost entirely on whether or
not a natural population interbreeds. The evolutionist Francisco Ayala
has defined a species as "groups of interbreeding natural populations
that are reproductively isolated from other such groups." By this
widely accepted definition, two geographically separated organisms could
be almost indistinguishable (and capable of interbreeding in the
laboratory) yet be considered two different "species" by reason of their
failure to interbreed in nature. Such populations are often referred to
as "_sibling species_." By this definition of species, there are over
6000 species of fruit flies in Hawaii alone!
Regrettably, the term species is not always used consistently today.
The nearly 150 varieties of strikingly distinctive dog breeds recognized
by the American Kennel Club are all considered to be members of the same
species _Canis familiaris_, because they all can cross breed. Yet the
gray wolf (_Canis lupus_) and the coyote (_Canis latrans_) are
considered to be different species, though they too are known to
interbreed with dogs. Creationists have long felt a need for a
classification that would include in one consistent category all
organisms that interbreed under _any_ conditions.
The Bible employs the Hebrew word _min_ 21 times in the Old Testament
to speak of the different "kinds" of animals. In Genesis the created
_min_ were said to reproduce each after its own kind, suggesting strict
reproductive limits. All birds, for example, are clearly not one _min_.
In the 14th chapter of Deuteronomy we find a separate _min_ applied
respectively to the raven, the ostrich, the nighthawk, the sea gull, the
hawk, the little owl, the great owl, the water hen, the pelican, the
vulture, the cormorant, the stork, and the heron. The classification
_species_ as used today is clearly more limited than the Old Testament
_min_.
Using the Biblical concept of classification, it would seem
appropriate to include all true cattle of the genus _Bos_ (seven
different species) in one _min_ since they all can interbreed. The
Santa Gertrudis breed of cattle, for example, was developed by crossing
Brahman bulls (_Bos indicus_) with shorthorn cows (_Bos taurus_). Even
the African buffalo (_Syncerus caffer_), can be crossed with the
American bison (_Bison bison_) and with other true cattle, suggesting
that all of these animals, though representing different genus and
species, could be considered to be of the "cattle kind" or _min_.
While animal species have never been observed to evolve into
distinctively different species, new species have been produced in
plants through the process of hybridization. In 1881, for example,
Judge J. L. Logan of California crossed a raspberry (_Rubus idaeus_)
with a blackberry (_Rubus allegheniensis_) to produce the loganberry
(_Rubus loganobaccus_). The loganberry breeds true, with no tendency to
revert back to either parent and is one of many examples of a true
modern hybrid in plants. Hybridization among animals is much more
restricted than in plants because of their more specialized mode of
sexual reproduction.
It has long been hoped by evolutionists that the science of genetics
would provide an explanation of how fundamentally new species are
formed, but this has not been the case. Attempts to explain evolution
by "macromutations" have failed, as have the attempts to equate
evolution with mere changes in the gene frequencies in populations
(population genetics). The evolutionist Richard Lewontin said that:
"It is an irony of evolutionary genetics that, although it is a
fusion of Mendelism and Darwinism, it has made no direct
contribution to what Darwin obviously saw as the fundamental
problem: the origin of species." (_The Genetic Basis of
Evolutionary Change_, 1974, p. 159).
We may safely conclude that there has never been an exception to the
simple words of Genesis 1:24: "And God said, Let the earth bring forth
the living creature after his kind, cattle, and creeping thing, and
beast of the earth after his kind: and it was so."
_______________________________________________________________________
Dr. Menton received his Ph.D. in Biology from Brown University. He has
been involved in biomedical research and education for over 30 years.
Dr. Menton is President of the Missouri Association for Creation, Inc.
Originally published in:
St. Louis MetroVoice
PO Box 220010
St. Louis, MO 63122
_______________________________________________________________________
Corrections and revisions have been made by the
author from the original published essay.
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