The
term “species” is surprisingly difficult to define. When asked,
most people offer a reproductive test; that is, creatures that can
reproduce naturally together and have fertile offspring are the same
species. Of course, this definition is not without a myriad of
exceptions. Wolves and dogs, for example, can mate and have fertile
offspring yet they are considered different species. So can bison
and cows, polar and grizzly bears, and dozens of other mammals.
Hybridization is ridiculously common in plants. All of these are
examples of different species mating so the ability to reproduce is
not a rigorous definition of a species. Neither can a reproductive
test be used to identify species of asexual organisms like bacteria.
Species
is an invented term, I understand that. And, in spite of the many
problems of defining it, I usually don't have a problem with the
word. However, in some cases, an exact meaning of the term is
necessary. I came across just such an instance the other day. On
FaceBook, someone posted an article
titled, Scientists
watch as a new species evolves before their eyes. From the
article:
Speciation,
the formation of new species through evolution, is not usually an
event you can directly observe. Organisms typically take many
generations to accumulate enough changes to diverge into new species;
it's a slow process. In fact, the difficulty of directly observing
speciation is a reason cited by skeptics of evolution for why they
have doubts.
¶But
biologists working at the University of California, San Diego, and at
Michigan State University, may have just put a rest to all of those
naysayers. They report to having witnessed the evolution of a new
species happen right before their eyes, in a simple laboratory flask
You
can see from this paragraph, the author of the article is suggesting
that the emergence of a new species (in the article, it's a new
species of a virus) is somehow evidence of evolution. If the rise of a new species is to be
used as an example of evolution, then yes, I'm going to ask what criteria are the scientists using to define a species? In this case, a reproductive test is not sufficient
since viruses are also asexual and cannot “mate” with the parent
population in any manner.
Did
you notice, too, how the author seems characterize critics of
evolution as people who deny speciation happens? He was very careful
not to use the word, “creationists,” but we all know that's who
he means. It's typical of evolutionists to make this straw man
argument. The reality is that most creationists don't deny
speciation. In fact, it's a critical part of young earth
creationism. God created animals according to “kinds.” Noah
took terrestrial animals on the ark in pairs of “kinds.” All
modern species are descended from these narrow groups. The 30+
species of modern cats are all descended from the 2 felines on the
ark, for example.
When
told that creationists accept speciation, evolutionists respond in
one of two ways. One way is to ridicule the creation model as a
type of “hyper-evolution” because the amount of diversification
that has occurred during the time since the Flood is much faster than
the slow, gradual process theorized by evolutionists. In a previous
post, I've discussed the claim that creationism
is a belief in hyper-evolution. It's also somewhat hypocritical
of them to criticize creationists for believing in rapid speciation
when they post articles like the one above talking about speciation
happening before their eyes – but never mind that now.
The
other way they respond is to throw out a red herring and ask the
creationist to define the term, “kind.” It's a red herring
because, whether or not a creationist can define the word, “kind,”
it doesn't excuse the evolution from having to define a species when
it's being used in the example above.
When
I was discussing the article above on FaceBook, one critic actually
said he couldn't respond to any of my points until I gave a precise
definition of “kind.” Really? I doubt that. I mean, there may
not be an iron clad definition of the word species but I understand
the term well enough to discuss it. I use the term frequently myself
and only ask for a rigorous definition when evolutionists try to
leverage “speciation” as evidence for their theory. Am I
supposed to believe that evolutionists can't understand the concept
of “kind” well enough to discuss it unless we give them an iron
clad definition first? Like I said, it's a red herring.
I've
discussed species
and kinds on my blog before. I might not be able to give a
rigorous definition of either but here are some practical
definitions. A species is a population of organisms that have enough
traits in common that they can be identified as belonging to the same
group. I admit, my definition may have a few difficulties but at
least it's rid of the need of a reproductive boundary. A kind is a
group of organisms originally created by God that would reproduce
organisms similar to themselves and includes all the varied species
descended from the original group. Maybe I could come up with a
better definition but, I daresay, this one is more precise than
nearly any definition of species that I've heard from evolutionists.
Think
about examples of species and kinds. Dogs, wolves, and coyotes can
breed together and have fertile offspring yet they are considered
different species. Because of their very different anatomies, Great
Danes can no longer reproduce with chihuahuas yet they are still
considered the same species. Evolutionists and creationists both
agree that all canine have descended from a common ancestor yet if
creationists call the members of the canine group a “kind,”
evolutionists act like they can't understand the term at all.
//RKBentley
scratches his head//
Evolutionists
play word games. They constantly conflate natural selection and
evolution. I talked in my
last post about how they casually use the word theory but harp on
creationists for calling evolution a theory. They claim
macroevolution is evolution above the species level but they can't
even define what a species is. When pressed for a definition of
species, they attempt to derail the conversation by asking
creationists to define a kind instead. I agree you can't have a
conversation with someone if there isn't a clear understand of the
terms being discussed. In the evolution/creation debate,
evolutionists aren't interested in discussion. I know they're not
stupid – they're just playing dumb. Conflate, equivocate,
obfuscate. That's the tactic of evolutionists.