Source: BBC
Nothing like a nice scientific reductio ad absurdum.
It is one of the great questions of the past 150 years.
Did God or evolution drive the emergence of life in all its resplendent variety?
This blog, the US education system, and even American politics have to a degree all become dominated by the debate at various times, which goes to the heart of our world view and our ideas of where we, and all other forms of life, came from.
But Ive just come across an intriguing piece of research that may, to coin a phrase, put an evolutionary cat among the believing flock of creation scientists, many of whom believe in the literal account of Genesis.
One scientist has decided to use creation science to test the validity of evolution.
Because, he says, if it turns out that creation science proves evolution, then by its own logic, it will have to reject its own canon of research that previously denied it.
Its a clever idea, because it once again puts evidence, rather than faith, at the centre of the debate.
Biologist Phil Senter of the Fayette State University in North Carolina, US, has published the second of two papers that uses creation science techniques to examine the fossil record.
In the first, published in 2010, he used a technique called classic multidimensional scaling (CMDS) to evaluate the appearance of coelurosaurian dinosaurs over geological time.
That long, detailed paper was published in the Journal of Evolutionary Biology, and you can read the abstract.
CMDS is derived from a branch of creation science called baraminology, which classifies organisms according to a creationist framework. Animals fall into types, or baramins, which were created independently, but have diversified since.
So cats, for example, are a single baramin or type of animal, that was created once by God, and have since diversified into those we see today (including lions, tigers, house cats etc).
Dr Senter has no real issue with the methodology as he points out in the 2010 paper, mathematics has no creed.
But he argues that if CMDS shows that dinosaurs do show transitional forms, and are in fact genetically related to each other, then creationists are in a bit of a bind.
Either they must accept that to be true, and therefore contradict their own position that these groups appeared without evolution. Or they must throw out the assertion, but also reject their own methodology, which they have used to validate their creationist claims.
Dr Senters 2010 study, did of course, show that coelurosaurian dinosaurs are related, in particular that tyrannosaurs (to which T. rex belongs) form a continuous group with other dinosaurs belonging to a group called the Compsognathidae.
It also showed that one of the most famous animal fossils of all, Archaeopteryx, which has the appearance of a transitional form between birds and reptiles, is also morphologically closely related to other dinosaurs.
In a study published this week in the Journal of Evolution, he shows how another creationist science method, a baraminological technique called taxon correlation, also shows enough morphological continuity between dinosaurs to prove, by creationist standards, that dinosaurs are genetically related.
If you read that abstract, it shows that a continuous morphological spectrum unites the basal members of a range of dinosaur groups including the Saurischia, Theropoda, Sauropodomorpha, Ornithischia and Thyreophora.
Within these groups are the dinosaurs familiar to most of us: the huge sauropods, the bird-like theropods such as Velicoraptor depicted in Jurassic Park and so-called bird-hipped dinosaurs such as the three-horned Triceratops.
The full paper is 20 pages long, and its conclusions will make for uncomfortable reading for creationists embracing an evidence-based approach to make their case.
Even some of Dr Senters results, which at first glance, may give succour to creationists, actually create new problems for them, he says.
For example, it shows that dinosaurs can be grouped into eight kinds, or baramins.
That is helpful to creationists. Many creationist scholars answered the problem of how so many pairs of gigantic dinosaurs fitted onto Noahs Ark by saying there were only 50 kinds, and therefore only 100 animals were carried on the Ark. If only eight kinds existed, then theres even more room on the Ark for all the other life forms that needed sanctuary.
But if just eight kinds of dinosaur existed, then that means that ever more types of dinosaur have to fit into each group, or baramin, that creationists believe was directly created by God. Which means of course, that somehow, in just a few thousand years, each kind of dinosaur begat the huge variation in fossils we see today.
It is reminiscent of evolution, just even faster paced.
Dr Senter points out that creationists' room for manoeuvre, when citing the evidence, continues to diminish.
Since 1990, Dr Senter says that at least 13 transitional fossils have been found that do bridge the morphological gaps between groups of dinosaurs that creationists once held were independently created.
Nothing like a nice scientific reductio ad absurdum.