I have so far only read the book through once and in this review, I simply want to discuss how RD uses the evidence for evolution that has been used before.
I did learn some new things from this book, as you would expect from a scientists book which is 470 pages. There were several things that gave me 'pause for thought' and I did learn of some interesting experiments, but as for the so called 'convincing evidence', I will leave the 'believers' to let that cat out of the bag. I will just give a short introduction now :-)
RD starts off in his ‘Preface’ by stating that ‘
this book is my personal summary of the evidence that the ‘theory’ of evolution is actually a fact-as incontrovertible a fact as any in science’...’
Looking back on [my previous] books, I realized that the evidence for evolution itself was nowhere explicitly set out, and this was a serious gap that I needed to close’ (His word is ‘those’).
So, first of all he acknowledges, that his previous books have not presented the ‘evidence’ and this book, a sort of ‘Dawkins of the Gaps’ ;-)
So before getting into the book’s chapters, let us cover in a general way how he deals with the ‘Icons of Evolution’ that have been used as evidence for evolution in the past, but have recently been criticised by the ‘history-deniers’
The Miller-Urey experiment. He makes a brief reference to this (P418,419), but does not use is as ‘evidence’ but simply states, “
The ‘reducing’ atmosphere inspired the famous experimental attack on the problem of the origin of life, Stanley Miller’s flask full of ingredients, which bubbled and sparked for a week before yielding amino acids and other harbingers of life. Darwin’s ‘warm little pond’, together with the witch’s brew concocted by Miller that it inspired, are nowadays often rejected as a preamble to advancing some favoured alternative. The truth is that there is no overwhelming consensus. Several promising ideas have been suggested, but there is no decisive evidence pointing unmistakably to any one.” (emphasis added) later on the same page he admits, “
We have no evidence about what the first step in making life was, “
So in regards to the Miller-Urey experiment, he does not see it, or use it as an evidence of evolution.
Darwin’s Tree of life. Although RD does mention ‘a tree of life’, the Hillis plot P329
an example can be seen at
http://en.wikipedia.org/wiki/File:Tree_of_life_SVG.svg
He does not, to my recollection anyway, discuss Darwin’s tree specifically.
He does use the phrase “
This is a truly astounding fact, which shows more clearly than anything else that all living creatures are descended from a single ancestor” P315 (speaking of the DNA code) and similar phrases, to state that we can trace our origin back through a ‘tree’ to one ancestor, but he does not illustrate this, but only states it as a ‘fact’. I am sure that some people may want to discuss this, but I am pretty confident that they will not be able to present any ‘evidence’ to show that it is a fact, only that they ‘believe’ that it is a fact. RD does not present any evidence for it, though this seems to be the point of the book!
Homology in Vertebrate limbs. This is discussed, and perhaps some people will want to take some time to ‘discuss’ if it is valid, but perhaps one quote will give an idea of this subject. “I
n post-Darwinian times, when it became accepted that bats and humans share a common ancestor, zoologists started to define homology in evolutionary terms. Homologous resemblances are those inherited from the shared ancestor. The word ‘analogous’ came to be used for resemblances due to shared function, not ancestry. For example, a bat wing and an insect wing would be described as analogous, as opposed to the homologous bat wing and human arm. If we want to use homology as evidence for the fact of evolution, we can’t use evolution to define it.”
(P312,313)
Haeckel’s Embryos. This is not mentioned at all, and perhaps this is because he knows that they have been discredited, and should not be used. He admits this in his interview with Wendy Wright (part of which he quotes on pages 198-202) but as I have pointed out before, they are still being used in 2007 in a book which he later recommends! (Evolution- What the fossils say) see attached photo
The only mention in this book (that I can remember) of Haeckel is on page 308, where he says “Darwin would surely have admired Haeckel’s draughtsmanship”, when referring to an illustration of his printed on p309 of some ‘crustaceans’
`
Archaeopteryx: The missing link. This is mentioned, but only in a rather dismissive way as if there is no need to do so, as there are so many ‘intermediate’ fossils now.
“ ‘
Produce your intermediates!’ Evolutionists often respond to this challenge from history-deniers by throwing them the bones of Archaeopteryx, the famous ‘intermediate’ between ‘reptiles’ and birds. This is a mistake, as I shall show. Archaeopteryx is not the answer to a challenge, because there is no challenge worth answering.” P151
Maybe, someone wants to discuss what ‘real’ intermediates there are, if there are any ;-)
Peppered Moths. As far as I can remember, they are not mentioned at all, though our texts books have included them as ‘evidence’ for so long, RD does not even mention them! Hopefully we have heard the end of this bad example of ‘evolution before our eyes’!
Darwin’s Finches. The phrase may have been mentioned, but only in passing, and they were not discussed as ‘evidence’. So hopefully we can live these behind in future discussions too ;-)
Four-winged fruit flies. Though, these have been touted in the past as an example of a ‘beneficial mutation’, there is no discussion about this, or the experiments that have been used in the past. The poor fruit flies are now reduced to the background, and the much discussed ‘beneficial mutations’ fare little better, as they are not illustrated as evidence in the book either.
Fossil horses. These are briefly mentioned, as is the ‘evidence’ of the whale evolution, but they are brief mentions and the fossil evidence in general in the book is very ‘poor’ and indeed, he simply reprints a illustration of whale evolution directly from ‘Evolution –what the fossils say’, p171 and advises that you get that book. (You know, the one with the Haeckel’s embryo’s ;-) Of course he has to admit that the illustration does not show whale evolution, but ‘suggests’ that whales are descended from a ‘cousin of Ambulocetus’ The illustration is simple a line drawing, as our most of the ‘fossil evidences’ and they are only the ‘opinions’ and ‘interpretation’ of the author, and his illustrator. There are several mentions of ‘new fossil evidence’ recently discovered, but of course, we cannot take them as evidence, as the interpretation given to them is open to discussion at the moment and they have not even been agreed yet.
From ape to human This is discussed in chapter 7, the one in which he quotes Wendy Wright. Though she was obviously not a scientist, and this is probably the reason why he was willing to have an hour long conversation with her, as she was not able to reply to him as ‘a scientist’. It was interesting that he does not have an hour long interview with any of the ‘historydenier’ scientists, who may be better qualified to answer him.
I will be happy to discuss the ‘evidence’ presented in this chapter
Anyway, this is just a brief overview of what RD has said about the former ‘Icons of Evolution’ which apparently RD does not feel are good enough to be repeated in this latest book. Perhaps the ‘historydeniers’ have made some impact after all ;-)
I will start to prepare a more detailed review of the book, and go over the chapters one by one. If anyone thinks that I have been unfair in anything I have said here, I will be happy to rectify, or clarify
Brian