Rama Singh is a Professor in the Department of Biology at McMaster University in Hamilton, Ontario (Canada). He happens to be the supervisor of Carlo Artieri, who writes Musings of the Mad Biologist.
Carlo noted on his blog (Evolution is a fact, not just theory...) that his boss has just published an article on evolution in the local newspaper. Read it at: Evolution is a fact, not just theory.
I'll quote the subheading and a couple of paragraphs and leave it up to my readers to discuss. Is this a good example of how scientists should explain evolutionary biology to the general public?
The only unproven area is Darwin's natural selectionI'll get the conversation going by pointing out that well before the 150 years Professor Singh mentions in his article, random genetic drift was proposed as a pretty good theory about how evolution can occur. It may not be "better" than natural selection but I think it's good enough to have deserved a mention.
Living organisms, on the other hand, evolve by variational evolution that depends on the survival and reproduction of the "fittest" individuals in the population, which is composed of many genotypes.
Unlike evolution, which is taken as a fact, the theory of natural selection, Darwin's mechanism for evolution, has come under criticism as to whether it is sufficient to explain evolution. In particular, early developmental biologists questioned if natural selection was adequate to explain the diversity and complexity of life.
Yet after 150 years of vigorous research (and many Nobel prizes!), no one has come up with a better theory. In fact, the more scientists have explored biology, the more they have become convinced of the facts of evolution.
Natural selection is a fact of everyday life. Resources are limited, individuals differ in their survival and reproduction, and evolution is a common sense conclusion deduced from facts and reasons. The problem with evolutionary change is that it takes place on such a slow place that we do not see it. However, we can imagine how evolution occurs by looking at the spectacular variety of food plants, flowers and domestic animals that we have produced by using the same principles of genetics and selection that nature uses. We may not witness the origin of species, but we have witnessed species becoming extinct in our own life time.