Funny that I read this book in Mexico, a country where more people believe in creation than evolution. For the record, I think we evolved from apes. For the record, that doesn't bother me in the least.
I am going to do two things, first, I will talk about what I learned from this book, secondly I am going to go on a rant about anthropology. While this book was interesting, there were parts where the author stepped far beyond his area of expertise, leading to some very weak chapters. Further, this was written almost 20 years ago, and it is simply amazing how quickly scientific knowledge has advanced. Some parts were outdated, which I found remarkable. Scientific facts seem to have a very quick expiration date.
This book details defining characters of human society - symbolic language, art, agriculture, war, drug abuse and environmental destruction - and presents our evolutionary precursors to these traits. He covers some excellently, and others with not as much conviction. He begins by discussing the unique aspects of the human body both genetically and our life cycle. This part was quite interesting. I learned that we share a whopping 98.4% of our genes with chimpanzees, which is pretty cool if you ask me.
It was interesting to see how our prolonged life cycle and the unique characteristic of females menopause has influenced human life. Those two things allowed us to transmit lots of information (because old folks would be the story tellers and survival experts when shit hit the fan) and allowed women to also live a bit after having children. It's quite dangerous to have children, let us recall. So menopause was a great thing for women, evolutionarily speaking. Interesting to learn that genetic changes took thousands of years to develop, but once they developed than cultural evolution exploded and since has outpaced biological evolution. Evolution slowly brought us to the place where we had the tools to really start running with it.
One thing that stands out from this book is that a large part of our progress was heavily dependant on the environment and our genes. Rarely do we stop and thank water for being there, or acknowledge how certain geographical features shaped us as humans. Perhaps we should do this more often.
At points, the author stepped outside of his area of expertise to strengthen his argument via other disciplines. I admire the approach and feel it's best to cover one subject through as many routes of knowledge as possible. The tricky thing is, you just have to make good arguments in those other fields. There were two chapters which I shook my head more often than I nodded it, they covered art and astronomy.
The author, in discussing what makes humans unique tries to find precedent in other animals as to how this evolved in humans. Art proves tricky. Art, which I would define as the soul expressing itself in reality, is a uniquely human endeavor. Diamond makes the claim that chimpanzees and elephants have produced art in captivity. He quotes an abstract expressionist painter and critic and a psychologist as his authorities. However, the issue is that other animal art is not a spontaneous creation. They were provided the tools in captivity, it's much more likely that they pick up paintbrush and smoosh paint to gain the approval of their handlers and earn extra attention than it is an undeniable expression of their soul. Also, the category of "art" that Diamond holds up as his "see, they can produce art" in fact defines itself as "anti-figurative aesthetic," meaning art that tries to look like nothing in order to symbolize emotion. So yes, chimps splashing paint fits into this very specific category, but that doesn't make it art outside of that interpretation. Show me more realistic art, art that holds the mirror to reality with a bit more clarity and then show me another animal spontaneously producing that, then we'll talk. This author simply does not understand art, which is fine, but which also means you should steer far clear of it while making a case.
However, the chapter that blew my mind more than any other was one chapter on our place within the universe. This chapter came from left field, was almost entirely speculative and had very little to do with the central thesis. I have no idea why the editor didn't cut it. Suddenly he begins to explain the immense size of the universe, accurately. Then he suddenly declares that there are no planets that can support life (incorrect), we're the only one with life (speculative), period. I was shocked, and I'm going to give him the benefit of the doubt only because we have learned very much about the abundance of habitable planets in the universe since 1992. That is the only thing that can possible explain this chapter, because after factually stating how immense the universe is, he then is completely incorrect scientifically about the abundance of planets and finally 100% speculative about there being no other life. The crappy part is he tries to present it all as factual, when in reality just his first stand of evidence was. Ugh. What the hell.
Now, time to rant, this book embodied a perspective on life that I am coming to disdain - anthropology, or 21st century intellectualized racial awwwing at the primitive people who are just so interesting! Primitive people make great facebook photo albums. Let me explain. The author did a lot of research on New Guinea, and talks extensively about it. Due to the terrain, there were many different societies who lived close to one another but remained isolated. Each pocked was a unique culture, with unique traditions and all that. For example, apparently round them parts the cool thing to do is wear basically a codpeice or penis stick. Some tribes painted them yellow, some green, some had flowers, some feathers, dudes had multiple and some were special occasion ones, etc. You getting the picture (if so what color is your penis stick, haha)? Lots of penis sticks, no shoes, native instruments, so cute right? None of the influence from evil modern society and satan incarnate aka the white man. Only within the last 40 years or so did these tribes begin to modernize, trade, get modern goods and all.
The author fondly recalls one of his strolls through the jungle back in the good old days where he came up to a tribe banging on drums and they were so amazed to see him, a white man. About 20 years later he goes back to visit the tribe, with I'm sure his notebooks to do "observations" on them, fancy camera, maybe a computer, etc and to his horror hears them listening to pop music and sees a few wearing Reeboks. Gasp, they were so much cuter, so much more useful to the purpose of my research paper, when they didn't have Reeboks.
What I find appalling about this perspective is it completely ignores the desires of the native people and it ignores the benefits that one is able to obtain from modern society. The very system that allowed the author to think in this way, be educated, and write a book is the one he wants to hold back from cultures because he would rather see the variety of penis ornaments. What if these people want to be modernized? Is it such a horrible thing that they learn about medicine and their infant mortality rate plummets? Is it a bad thing that their life expectancy is over 40 now? What if they want to wear Nikes? Is it such a bad thing to see a world map, understand it's a big place, learn that there are about 7 billion other humans out there?
What I simply do not understand about the "awww, look at and study the primitive people" perspective is the lack of consideration for the desires, wishes, or well being of the culture in question. It's like they feel guilty about being white and going to good prep schools. So they'll write academic papers about those cute jungle people, and take photos and all that, but it's like they want that to remain the way it is. Don't modernize, I just got grant money to study you! It's like their vacation from reality, and I think it's frankly insulting to the people being photographed and studied as if they were animals.
Breathe. Anyway, I thought this book was going to be excellent, instead it was average. Perhaps a new edition would really go a long way in improving it. I learned some interesting statistics, but am not very inspired to continue reading Diamond.
It has also proved possible to work out a calibration between genetic distance and elapsed time, and thereby get an approximate answer to the question of when we and chimps split apart from our common ancestor. That turns out to be somewhere around seven million years ago, give or take a few million years. 12
If our ethical code makes a purely arbitrary distinction between humans and all other species, then we have a code based on naked selfishness devoid of any higher principle. If our code instead makes distinctions based on our superior intelligence, social relationships, and capacity for feeling pain, then it becomes difficult to defend an all or nothing code that draws a line between all humans and all animals. 30
The emergence of Homo sapiens illustrates the paradox discussed in the previous chapter; that our rise to humanity was not directly proportional to the changes in our genes. 37
Those of us accustomed to getting our information from the printed page or television will find it hard to appreciate how important even just one or two old people are in a preliterate society...one such person in a preliterate society can thus spell the difference between death and survival for the whole society. 50
Cro-Manon Neanderthal transition was a harbinger of what was to come, when the victors' descendants began squabbling among themselves. It may at first seem paradoxical that Cro-Magnons prevailed over the more muscular Neanderthals, but weaponry rather than strength would have been decisive. Similarly, it's not gorillas that are now threatening to exterminate humans in central Africa, but vice versa. People with huge muscles require lots of food, and they thereby gain no advantage if slimmer, smarter people can use tools to do the same work. 52
Until the great leap forward, human culture had developed at a snail's pace for millions of years. that pace was dictated by the slow pace of genetic change. After the leap, cultural development no longer depended on genetic change. Despite negligible changes in our anatomy, there has been far more cultural evolution in the past forty thousand years than in the millions of years before. 56
Our mean duration of coitus (about four minutes for Americans) is much longer than for gorillas (one minute), pygmy chimps (fifteen seconds), or common chimps (seven seconds), but shorter than for orangutans (fifteen minutes) and lightning fast compared to the twelve hour long copulations of marsupial mice. 75
In these days of growing human over population, one of the most ironic tragedies is the catholic church's claim that human copulation has conception as its natural purpose, and that the rhythm method is the only proper means of birth control. The rhythm method would be terrific for gorillas and most other mammal species, but not for us. In no species besides humans has the purpose of copulation become so unrelated to conception, or the rhythm method so unsuited for contraception. 78
How does one decide whether recognizably distinct animal populations from different localities constitute different species, or belong instead to the same special and just constitute different races (also known as subspecies)?...The distinction is based on interbreeding under normal circumstances,: members of the same species may interbreed normally if given the opportunity, while members of different species don't. 112
The longer life span of modern humans as compared to that of apes does not rest only on cultural adaptations, such as tools to acquire food and deter predators. It also rests on the biological advantage of menopause and increased investment in self-repair. Whether those biological adaptations developed especially at the time of the great leap forward or earlier, they rank among the life-history changes that permitted the rise of the third chimpanzee to humanity. 135
Up to half the words in typical human speech are purely grammatical items, with no referent that one can point to. 153
Most of today's leading infectious diseases and parasites of mankind could not become established until after the transition to agriculture. These killers persist only in societies of crowded, malnourished, sedentary people constantly reinfected by each other and by their own sewage. 187
Besides malnutrition, starvation, and epidemic diseases, farming brought another curse to humanity:class divisions. 187
[Discussing dangerous behaviors, such as smoking or tattoos] Males of many more species have bright colors, loud songs, or conspicuous displays that attract predators. Why should a male advertise such an impediment, and why should a female like it? Zahavi's theory goes to the heart of this paradox. According to his theory, those deleterious structures and behaviors constitute valid indicators that the animal is being honest in its claim of superiority, precisely because those traits themselves impose handicaps. 197
Continental differences in level of civilization arose from geography's effect on the development of our cultural hallmarks, not from human genetics. Continents differed in the resources on which civilization depended - especially in the wild animal and plan species that proved useful for domestication. 236
Plants and animals spread quickly and easily within a climate zone to which they've already adapted. To spread out of this zone, they have to develop new varieties with different climate tolerances. A glance at the map of the old world shows how species could shift long distances without encountering a change of climate. 245
These calculations, which belong to a science called glottochronology ( = chronology of languages), yield the rule of thumb that languages replace about 20 percent of their basic vocabulary every one thousand years. 262
The steppe itself reaches its western limit in the plains of Hungary. That's where all subsequent steppe invaders of Europe, like the Mongols, stopped. To spread further, steppe society had to adopt to the forested landscape of western Europe - by adopting intense agricultural or by taking over existing European societies and hybridizing with their peoples. Most of the genes of the resulting hybrid societies may have been the genes of old europe. 271
Chimpanzee behavior suggests that a major reason for our human hallmark of group living was defense against other human groups, especially once we acquired weapons and a large enough brain to plan ambushes. If this reasoning is correct, then anthropologist's traditional emphasis on "man the hunter" as the driving force of human evolution might be valid after all - with the difference that we ourselves were our own prey as well as the predator that forced us into group living. 294
Our power threatens our own existence. 311