Grazer
Member
This seems to have generated a lot of heated discussion on another thread so thought I'd give it one of it's own.
Before we can begin to answer the question, I think we need to define evolution and what it is. The best place to look at definitions is the dictionary:
1) The process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.
2) the gradual development of something:
the forms of written languages undergo constant evolution
3) Chemistry the giving off of a gaseous product, or of heat:
the evolution of oxygen occurs rapidly in this process
4) [count noun] a pattern of movements or manoeuvres:
flocks of waders often perform aerial evolutions
5) Mathematics, dated the extraction of a root from a given quantity.
Origin:
early 17th century: from Latin evolutio(n-) 'unrolling', from the verb evolvere (see evolve). Early senses related to movement, first recorded in describing a ‘wheeling’ manoeuvre in the realignment of troops or ships. Current senses stem from a notion of ‘opening out’, giving rise to the sense 'development'
http://oxforddictionaries.com/definition/english/evolution?q=evolution
With the exception of definition 1, which I'll come back to in a moment, all the others simply mean 'change over time' in various contexts. First we had state a, now we have state b. Changes in species have been observed albleit in smaller organisms. Some viruses have evolved to now be resistant to most anti-biotics which I will refer to later.
Now definition 1 is generally what is meant by the theory of evolution. The view that life on earth has evolved from something to what it is now over a long period of time (note that it has to pre-suppose the existence of something to evolve, it offers no explanation for where that came from, a point to which I return) At this point I need to bring in the concept of common ancestry. I will be quoting defintions from chapter 5 an article by Dr Allan Harvey (http://steamdoc.s5.com/sci-nature):
Coming back to the fact that viruses have evolved, another definition involves the mechanisms behind this:
The last sentence of the previous definition brings us onto the world view known as Evolutionism:
We need to be extremely careful in being clear in what we mean when talking about evolution. Are we referring to changes over time, the theory of evolution, or the evolutionism world view? They are 3 very different things. Regarding how this fits with the Christian faith, there is no conflict since the central claim of the Christian faith is that Jesus died for our sins and was raised again. How it fits with the Genesis creation account? Well that's a massive topic for another time and beyond the scope of the purpose of this thread.
But on that note, I would like to end with one of my favourite quotes from the late Stephen Jay Gould (taken from http://www.stephenjaygould.org/reviews/gould_darwin-on-trial.html)
Before we can begin to answer the question, I think we need to define evolution and what it is. The best place to look at definitions is the dictionary:
1) The process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.
2) the gradual development of something:
the forms of written languages undergo constant evolution
3) Chemistry the giving off of a gaseous product, or of heat:
the evolution of oxygen occurs rapidly in this process
4) [count noun] a pattern of movements or manoeuvres:
flocks of waders often perform aerial evolutions
5) Mathematics, dated the extraction of a root from a given quantity.
Origin:
early 17th century: from Latin evolutio(n-) 'unrolling', from the verb evolvere (see evolve). Early senses related to movement, first recorded in describing a ‘wheeling’ manoeuvre in the realignment of troops or ships. Current senses stem from a notion of ‘opening out’, giving rise to the sense 'development'
http://oxforddictionaries.com/definition/english/evolution?q=evolution
With the exception of definition 1, which I'll come back to in a moment, all the others simply mean 'change over time' in various contexts. First we had state a, now we have state b. Changes in species have been observed albleit in smaller organisms. Some viruses have evolved to now be resistant to most anti-biotics which I will refer to later.
Now definition 1 is generally what is meant by the theory of evolution. The view that life on earth has evolved from something to what it is now over a long period of time (note that it has to pre-suppose the existence of something to evolve, it offers no explanation for where that came from, a point to which I return) At this point I need to bring in the concept of common ancestry. I will be quoting defintions from chapter 5 an article by Dr Allan Harvey (http://steamdoc.s5.com/sci-nature):
For a readable overview of common ancestry, I recommend The Language of God by Francis Collins, former director of the human genome project.This is central to what scientists usually mean by “evolution.†Common ancestry (or common descent) means that life has branched out, so dogs and wolves are distant cousins, dogs and cats are more distant cousins, and if you go back far enough dogs and fish, or dogs and trees, had a common ancestor. You can put humans in the family tree as well – related to chimpanzees, more distant from other mammals, and so forth. This says nothing about how or why this occurred, merely that life has branched out in this way. Sometimes people distinguish between evolution as “fact†and as “theory,†and the distinction is between common ancestry as the “fact of evolution†and the “theory of evolution†that tries to explain how it happened. Many people don’t appreciate that the evidence for common ancestry is overwhelming. It might have been reasonable to question it 50 years ago when it was just based on things like fossils and anatomy, but now DNA technology has provided powerful independent confirmation
Coming back to the fact that viruses have evolved, another definition involves the mechanisms behind this:
So now that we have established some definitions (change over time, common ancestry, evolutionary mechanisms) lets look at what is meant by the theory of evolution:This refers to specific natural mechanisms (first proposed by Darwin, although in a primitive way because genetics was not yet understood) that cause species to change. Genetic variation is the fact that (due to mixing of parental genes and to mutations) children have different genes and different traits. Natural selection refers to the fact that the traits will make some children more likely to survive and pass their genes on to future generations. This is clearly correct on some scales, as it can be directly observed (for example, the evolution of bacteria resistant to certain antibiotics) or studied at the level of individual traits (for example, a recent study traced the evolution of lactose tolerance in humans as milk-producing animals were domesticated in different societies).
Essentially it brings together the 3 established previous definitions of evolution and offers a theory to explain them.Mechanisms account (physically) for common descent. This is typically what scientists mean by “the theory of evolution.†We know these mechanisms produce changes in species, but do they account for all the evolution (in the common ancestry sense) that has happened through the history of life on Earth? Most biologists, including most Christians working in these areas, would say “yes,†but it is certainly not as 100% established as the previous meanings. It is very important to note the word “physically†in our E-4 definition. When we say the mechanisms account for what happened, that is at the physical level – it says nothing about whether this is nature acting by itself (of course for a Christian there is no such thing as nature acting by itself!) or whether God is working through nature.
The last sentence of the previous definition brings us onto the world view known as Evolutionism:
The age of the earth is a different question and the evidence for which will not be found in biology.I use that term to refer to a meaning that is not science at all, but rather an ideology that sometimes masquerades as science. This starts with the philosophical position that natural explanations exclude God. Since science has produced these natural explanations for life, those with this ideology claim to have pushed God out of the picture. Of course these metaphysical conclusions are not science in any way – those who advocate this meaning are simply pushing atheistic philosophy, and it is wrong to try to claim it is a result of science.
We need to be extremely careful in being clear in what we mean when talking about evolution. Are we referring to changes over time, the theory of evolution, or the evolutionism world view? They are 3 very different things. Regarding how this fits with the Christian faith, there is no conflict since the central claim of the Christian faith is that Jesus died for our sins and was raised again. How it fits with the Genesis creation account? Well that's a massive topic for another time and beyond the scope of the purpose of this thread.
But on that note, I would like to end with one of my favourite quotes from the late Stephen Jay Gould (taken from http://www.stephenjaygould.org/reviews/gould_darwin-on-trial.html)
Peace with you allDarwin himself was agnostic (having lost his religious beliefs upon the tragic death of his favorite daughter), but the great American botanist Asa Gray, who favored natural selection and wrote a book entitled Darwiniana, was a devout Christian. Move forward 50 years: Charles D. Walcott, discoverer of the Burgess Shale fossils, was a convinced Darwinian and an equally firm Christian, who believed that God had ordained natural selection to construct a history of life according to His plans and purposes. Move on another 50 years to the two greatest evolutionists of our generation: G. G. Simpson was a humanist agnostic. Theodosius Dobzhansky a believing Russian Orthodox. Either half my colleagues are enormously stupid, or else the science of Darwinism is fully compatible with conventional religious beliefs—and equally compatible with atheism, thus proving that the two great realms of nature's factuality and the source of human morality do not strongly overlap.
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