The author has taken the courage to glimpse past 2.5 billion years which seems the information procuring was a bit hard. From the book, we can understand that the author has done enormous research and studying into the subject as information is deeply rich.
There are plenty an image which shows the information is evidence based and also makes it easy for normal people to understand. The first fossil carefully presented by author is a fish and the source of fossil which is rock is extensively showcased. One can view the fishes and see the slow evolution where it turns it an amphibian. This point is not arguable as people no evolution started from water and fishes are what turned to amphibians. One thing what comes into mind is the transformation of tadpole into frog as the former has a tail and abandons it as it matures.
The fishes are later shown to evolve gradually develop limbs and face and ultimately become human. But it does make sense as far as the fossil go, but we do not have the real proof to it and something can sound dubious. We cannot see a stage between a dog and a man as in a creature which looks half dog and half human. After dog the transformation is merely on basis of bone structure and we really do not know human are another species completely with some common characteristic of animals. In fact, human arm and a four legged animal’s arm do have good similarities but this is not good enough to conclude that we indeed evolve from animals. However, the hand and arm born structure is pretty convincing evidence about our inner fish self.
Now when we look at the DNA and chromosomes, we can understand we are going into more intricate details we can find that looking at the evolution of men and the fossil discovered of men nearly make this article justifiable. Obviously we know, that we all live on this earth, using the same resource however might in some various