Tuesday, April 10, 2018

The Greatest Show on Earth: The Evidence for Evolution Reprint Edition by Richard Dawkins (Free Press)



Knowing Richard Dawkin's resume', there's no question that he has a refined knowledge in the biological science spectrum. In The Greatest Show on Earth his broad scope of knowledge is on display. The author convincingly builds on his premise (i.e. why evolution is true) chapter by chapter. He explicates the main point of each chapter not by getting straight to it, but by priming the reader with a plethora of examples, schematic illustrations, and evidence before coming to a full fledged circle. This helped prepare [novice] readers grasp difficult (or hard to imagine) concepts and perhaps cope with the grand conclusion(s) that might be contrary to a popular belief (e.g. Noah's Ark). Despite the numerous and perhaps sometimes even gratuitous (didn't bother me, i'm a novice) examples, the author excels at much more than biology, ecology, and ethology. Dawkin's has a well-rounded knowledge in anthropology, chemistry, embryology, etc, and a talent for explaining as well. The author also considers evolution critics and their objections, even some that are ostensibly ridiculous. In interpolated Gallup results, a surprising 44 percent of Americans believe that "God created human beings pretty much in their present form at one time within the last 10,000 years or so", which is basically the denial of evolution . As the author put it; it's the equivalent to believing that the length of North America is less than 10 yards. There's a particularly good (and expedient) chapter that reinforces the ridiculousness of such assumptions. That chapter is called "Silence and Slow Time" and it's chapter 4. In the chapter the author goes through some of the most common dating methods, such as the tree rings method, radioactive clocks methods, carbon-dating and the molecular clock which he goes in chapter 10.

Some of the counter-evolutionary arguments he addressed for example were, and im going to just put the name of the subsections; "show me your crocoduck", "ill believe in evolution when a monkey gives birth to a baby", and the pernicious legacy of the great chain of being - aka the "missing links" retort. He comes at the missing-link argument by giving example of many missing-links that were in fact discovered, like the fascinating discovery of the Tiktaalik, which was found to have lived in the so-called "missing-link" (i.e. the transitioning 20 million-year period at the end of the Devonian and the beginning of the Carboniferous) and may very well represent the shocking evolutionary transition from fish to amphibian. "Missing-links" are in other words, the absence of transitional fossils and creationists are enamored with it. The author explains that we should be grateful that there are any preserved fossils at all and that we don't in fact need fossils in order to demonstrate that evolution is a fact. A good metaphor is used in the beginning of chapter 6 of a detective walking into a crime scene and despite obtaining DNA evidence, the suspect having inferential familial motive, clues such as fingerprints and toe prints, and even a video recording of the suspect entering the room and leaving it right after the time of death, the defense lawyer still hold tightly against the prosecutors case saying that there's no video evidence of the murder itself, so therefore we can't prove that the suspect is guilty. In a court of law, the jury would find the defendant guilty. Juxtapose this to evolution and those that deny it. Toward the twilight of the book, Dawkins talks about the universal paradigm of DNA, that is, the internal similarity of all organisms. This purports to the salient ascension of all species today from a [more] common primordial ancestor. The author touches a bit on evolutionary theodicy and then in the final chapter deciphers the last paragraph of Charles Darwin's On the Origin Of Species which goes:

"Thus, from the war of nature, from famine and death, the most exalted object which we are capable of conceiving namely, the production of the higher animals, directly follows. There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved" - Charles Darwin

No comments:

Post a Comment