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Posts Tagged ‘evolution’

There Must Be an Idiom

                                 St. Francis Xavier University, Antigonish, Nova Scotia

A couple of days ago I read something that I found very disturbing and I was reminded of it today. It illustrates the challenge we have in educating the public about science and, perhaps, why it is so challenging. There must be an idiom which fits. Perhaps you have some suggestions.

So, first I will tell you what I read, then I will tell you why it was more disturbing than what I commonly encounter. If you want to skim, I cannot stop you, but please scroll down to the bottom for the shocker.

The offending paragraph was found in a review of Daniel Loxton’s wonderful children’s book, Evolution: How We and All Living Things Came to Be which appeared in CM Magazine, a publication of the Manitoba Library Association.

Although the text is very good in describing the theory of Evolution, there are points in the book where the author makes comments that could imply that Evolution is more than a theory. For example, “…Charles Darwin revealed the solution to the mystery of evolution” (p. 7). He also makes the comment that Evolution is the most important idea in all of biology (p. 7). Such phrases may lead the reader into thinking that scientists completely understand the theory of Evolution which would be incorrect, else Evolution would be a principle or a law and not a theory. As well, it is a bit bold to claim that evolution is the most important idea in all of biology – biology is a huge field of study with other key discoveries.

This text could be read by a young reader for ‘fun.’…

First, let me address this criticism because it is a common one made by evolution deniers and because it preys on a misunderstanding of science that many laypeople have.

As with most words in the English language, the word “theory” has multiple meanings. In general use among non-scientists, it is often used to express “conjecture”, “speculation”, or some other unproven or untested guess.

None of those definitions are what a scientist means when they use the term “theory”.

Neither a “principle” nor a “law” is a theory which is “completely understood”, either. Laws are simple statements which describe, not explain.

The descriptions given by Dr. Genie Scott, Executive Director of the National Center for Science Education, of the definitions of fact, law, hypothesis, and theory. It occurs about 3:50 into the video.


Theories vary in strength from very weak to very strong. The theory of evolution through natural selection has withstood 150 years of rigorous testing. It is one of the strongest theories in science.

And, yes, it is, by far, the most important idea in biology. It is probably the most important in all of the life sciences including behavioral sciences like psychology. Of course, this is a statement of opinion and I am not a biologist. However, I cannot imagine a biologist of any quality who does hold this opinion. I offer as evidence the words of Pierre Teilhard de Chardin, whom Theodosius Dobzhansky quoted in his 1973 essay in American Biology Teacher titled “Nothing in Biology Makes Sense Except in Light of Evolution“:

(Evolution) is a general postulate to which all theories, all hypotheses, all systems must henceforward bow and which they must satisfy in order to be thinkable and true. Evolution is a light which illuminates all facts, a trajectory which all lines of thought must follow — this is what evolution is.

So, to summarize so far, a theory is an explanation – it is a set of testable and tested statements about relationships among variables which explains a given phenomenon. Ideas are not called “theories” because we do not know if they hold true. The strength of a theory depends on the quantity of observable facts explained, the quality of the explanation, the amount of testing it has withstood, and many other factors.

Evolution is an amazingly strong theory.

The author of the review does not understand the term “theory” as it is used in science, nor does she understand “law” and “principle”. Although these are often misunderstood by laypersons, they are fundamental to science. They are the language of science.

What is so shocking?

The review was written by an Assistant Professor of Science Education.

Katarin MacLeod is an Assistant Professor in Science Education at St. Francis Xavier University in Antigonish, NS. Her areas of interest include physics educational research (PER), and the incorporation of science, technology, society and environment (STSE) outcomes into science courses at all levels to help students understand the relevancy of science, increase scientific literacy, and to promote citizenship.

That, my friends, is disgraceful.

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Waltke Resigns at Seminary Over Evolution

I came across this story on The Huffington Post the other day and I was surprised for two reasons: 1) A religious scholar endorsing evolution, and 2) that he had to resign from his position at a seminary to “save face”.

Admittedly, I’m not overly surprised by Bruce Waltke’s affirmation that biblical scripture and evolution can coexist, so I’m obviously more surprised by the latter. Unfortunately, for many who hold this belief who also serve at schools of theology, they face this “closet” experience.

I do hold his statement regarding Christianity’s likeness to a cult if it continues down the path of evolution-bashing. It takes one in deep denial about the way the world works to refute the claims of evolution, but to most Christians, it seems relatively easy. However, if you compare evolution to other situations not mentioned in the Bible, there are many things that we have evidence for that shouldn’t be correct, but doesn’t create such a heated debate (e.g., dinosaurs living with humans).

I applaud Waltke for his willingness to break the mold… even though the immense pressure of the establishment forced his hand. We all know that it wouldn’t do the budging.

As a side note on evolution, Discovery Channel’s Life miniseries that has recently aired mentions evolution quite a bit. After doing a brief search, I cannot find any controversy surrounding the use of this word and its application to the animals and plants filmed for this series from sources outside the Discovery organization.

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