Why Zebras Don’t Get Ulcers, by Robert Sapolsky

In this humorous and informative book, Robert Sapolsky explains how and why stress affects our bodies. The premise is that prey animals like zebras use a stress response in an evolutionary sensible way by upping certain hormones while they are being hunted, but then the zebras’ stress levels drop again when they escape. Humans have the same bodily changes, only our stress tends to be small amounts for long periods of time, meaning the effects on the nervous system (lower digestion, higher blood pressure, reduced growth, etc.) remain continuously activated. Therefore, human stress is not sensible from an evolutionary standpoint. Each chapter in Sapolsky’s book covers a different bodily system and explains in detail how and why stress affects it. He ends with a rather lengthy description of how lower socio-economic status affects our bodies. Although this section was interesting, it seemed a bit lengthy and out of place from the rest of the book. The subject could be a book all on its own. 


One thing I loved about this book is it’s approachability. It was easy to read and made me laugh several times each chapter. Sapolsky has an excellent dry sense of humor. He also included a picture of baboons smack in the middle of his book for seemingly no reason. That made me laugh as well. 

I was listening to his companion set of lectures Stress and Your Body concurrently, though I dropped behind and still have several lectures yet to finish of the course. You can see some details of the information covered in the book and lectures if you check out the above link. In hindsight, although both were enjoyable, only one or the other was necessary as most of the material was exactly the same – even to the wording. 

This is a very stressful book to read, so watch out if you are prone to stress. 

(For another theory about why stress evolved, you can check out my review of the Noonday Demon by Andrew Solomon). 

The Sixth Extinction, by Elizabeth Kolbert

The Sixth Extinction: An Unnatural History
by Elizabeth Kolbert
Narrated by Anne Twomey
I read this book a couple of months ago with Doing Dewey‘s nonfiction book club, but luckily I took notes. 

This book documents the mass extinction that Kolbert (along with quite a few scientists) believes is due to humans. It’s not only about hunting animals out of existence. It’s about carrying invasive species (including animals, plants and fungus) into new environments. These species are destructive to foreign ecological systems because each system did not develop in parallel with the new species – thus the system did not develop immunity and protection against the invasive species. For instance, our travels around the world transport fungus that have caused plague among bats world-wide, and frogs in the Southern Americas. This book is mainly a scientific endeavor written by a journalist, but we also get to follow Kolbert as she shadows scientists around the world in their quests to study and prevent extinction. 


At first, this book made me feel guilty for the extinctions that humans have caused. But then I realized that we are a kind of invasive species too. Is it really our fault that we developed minds and then tools capable of carrying us around the world? Had we any idea of the destruction that we would cause? No. We were just doing what any species does – procreate, expand, and diversify. I also feel that Kolbert was catastrophizing a bit in her book. Although humans have certainly caused a lot of damage to our planet, I don’t think we are capable of destroying a world that has survived so many other massively destructive events. We are just another blip in the planet’s development. 




The Tide, by Anthony J. Melchiorri

The Tide, by Anthony J Melchiorri, narrated by Ryan Kennard Burke
Captain Dominic Holland (Dom) is head of a covert operations team which investigates bioterrorism. As he and his team check out some suspicious activity on what was believed to be an abandoned oil rig, bone-armored mutant men begin to wash up on shores of countries around the world. Soon, citizens become crazed – brutally attacking and devouring people. Dom’s team rushes to find a cure to the bioweapon, as civilization crashes around them. 


I found this book in the new releases in Audible and thought I’d try it out. The genre is basically bioweapon zombie apocalypse, but the “zombies” aren’t actually zombies. They are living humans who develop bony armor around their bodies and get brain activation of unthinking violence. It was a fast-paced, high-action book. The science was very reasonable – clearly Melchiorri did his research – which I like to see in biotech books (otherwise I tend to roll my eyes and criticize every little mistake). Yes, the race for a cure moved along much too fast to be realistic, but that’s the nature of the genre, not a problem with Melchiorri’s writing. Nobody wants to read a book with the pacing of real life, after all. 🙂 

I think this book will be quite enjoyable to anyone who likes biotech apocalypse thrillers, especially those who enjoyed Jonathan Maberry’s Patient Zero. But beware, it is the first in a series, and the story just cuts off at the end – there’s not a satisfying conclusion. Luckily, Melchiorri is releasing the second one hot on the heels of the first, so this may not be an issue for many readers. 

I decided to give this book four stars despite the fact that there wasn’t a satisfying ending. The science was excellent and it was just what a biotech thriller should be. 

The Blank Slate, by Stephen Pinker

The Blank Slate, by Stephen Pinker; narrated by Victor Bevine

In The Blank Slate, Pinker outlines three dogmas that he says are the prevailing views of human nature in modern philosophy: 

1) The blank slate, in which the mind has no innate (genetic) properties and, as John Watson boasted, through conditioning you could train a child to become anybody you want her to become. 

2) The noble savage, in which people are born good, and society forms them into deviants. Pinker suggested that Rousseau was a strong proponent of this theory, but according to Wikipedia (which is always accurate), Rousseau never used this term. 

3)  The ghost in the machine, in which people’s choices are solely dependent upon their soul. 

Personally, I’m a little skeptical that these are the dominant views of most scholars of human nature. I’m sure there are quite a few people who believe quite firmly in a genetic component to behavior, as Pinker does. But perhaps I’m biased because I’m a biologist and not a psychologist. 

Pinker provides evidence that these three dogmas are false, and that there is a strong genetic drive in human behavior.  
The first section in The Blank Slate that really caught my attention was the one on racism. He brings up the controversial book The Bell Curve, by Richard J Herrnstein and Charles Murray. Much to the dismay of the politically correct (I’m sure), Pinker suggests that Herrnstein’s data are correct and that African Americans have a lower IQ than white people, and that this difference is at least partly genetic. He says that the reason people are so horrified by The Bell Curve is due to their fear of inequality. That it is not racist to report such data – what is racist is to judge someone solely upon that data and not upon the person’s demonstrated abilities. 

Pinker also suggests that we only fear inequality when bigotry on the subject already exists. For instance, there is another set of studies in which height and IQ are positively correlated. He points out that no one frets about those studies, because there isn’t an already existing negative bias about short people. 

I was originally offended by Pinker’s thoughts on racism, but then I realized that at some level, at least, he is correct. I don’t like the data because it implies something that I don’t want to believe. I still cringe at the data presented in The Bell Curve, and I like to think there was some bias in the studies which led to incorrect results. That Herrnstein and Murray were terrible racists who should be shunned from academia. But Pinker managed to sew a seed of doubt. 

More interesting sections were those on violence and rape. Pinker suggests that both violence and rape are part of human nature. He says that most people cringe at this concept because we believe that anything that is “human nature” must be good. But why do we believe that? Are we all proponents of “the noble savage” dogma? 

In the section on rape, Pinker references Randy Thornhill and Craig Palmer’s book A Natural History of Rape. This book posits that rape is motivated by sexual and aggressive urges, not upon a male desire to dominate females (as many feminists claim). Personally, I have no problem believing that rape is motivated by sex and violence and not by male domination. In fact, it never occurred to me that men rape women for the purpose of oppressing them. Is this really a currently common belief? I guess I should follow the #YesAllWomen hashtag on Twitter more. Perhaps that would educate me on this subject. If you follow that hastag, please let me know your thoughts.

This brings us into Pinker’s section on the genetic differences between women and men. Pinker points out that it is not sexist to suggest that there are genetic (and therefore emotional as well as physical) differences between women and men. There are two kinds of feminism: gender feminism and equity feminism. Gender feminists believe that the male and female “roles” are determined by society and not by genetics. Pinker argues that these roles are genetically driven – that girls naturally want to play with dolls and boys naturally want to roughhouse. He points out that although his beliefs are contrary to gender feminism, they are compatible with equity feminism, in which women and men deserve civil and legal equality. Pinker says that most modern women don’t consider themselves feminists because they equate “feminism” with gender feminism. That most women are equity feminists, they just don’t know it. 

In fact, that’s true of me. I always considered myself “not a feminist” because I believe that my feminine qualities are naturally derived and not societally derived. Now I know that I am a feminist. 🙂

Overall, I found this book fascinating. I didn’t think I was going to agree with Pinker…especially when I first started the book. But he presented some pretty good arguments. One problem I did have with the book, though, is how arrogant Pinker is. Instead of saying “I will now provide evidence that…” he says “I will now prove…” 

He also makes an off-putting comment that poked a pet peeve of mine. He says that any scientist that believes in the three prevailing dogmas of human nature should be as skeptical of evolution as the Pope. I guess I’ve never asked the Pope his personal opinions of evolution, but being a Roman Catholic, I know that evolution is quite acceptable in the Church. If you don’t know anything about what Catholics believe, then don’t write about them. 

This is a pet peeve of mine because I’ve had people tell me: “I know about Catholics because I’ve read about them. If you don’t believe [insert false belief here] then you aren’t a very good Catholic.” Someone literally said that to me (where the inserted false belief was that mother Mary is divine). It is ignorant statements by otherwise intelligent and educated people like Pinker that make well-read people think they know more about my religion than I do. 

That aside, I still recommend the book. 🙂

4.5 snowflakes for fascinating subject, good research, and writing style

Reason for reading: Interest, TBR pile
Format: Audiobook

The Social Conquest of Earth, by Edward O. Wilson

2012 Book 154: The Social Conquest of Earth

Written by Edward O. Wilson, Narrated by Jonathan Hogan

Reason for Reading: Group read in our LibraryThing “Science, Religion, History” group



Review 

In The Social Conquest of Earth, Wilson expounds upon the theories that were set forth in his classic work Sociobiology. His main thesis is that group selection, not kin selection, drove evolution and helped us to develop societies. He compares the way human society developed to the way ant “society” developed (ants are his specialty). He suggests reasons why religion and xenophobia would have originally developed as protective characteristics of groups. This book covers a large swath of material…from ants to human prehistory, to history, to today. I think he did a pretty good job organizing the book considering what a wide topic he was covering. His theories were clear and for the most part convincing. I think Wilson is an atheist, but he did a pretty good job of stating his opinions in an agnostic sort of way to avoid insulting the faithful. The only statement that rather jarred me was when he suggested that there surely exist better ways to find spiritual fulfillment than total submission to God. This statement jarred me because it seemed he was saying that this religious process developed for a reason, but that reason is now obsolete. However, in an earlier chapter, he pointed out that homosexuality developed for a reason, so homophobia is not helpful to society. I wholeheartedly agree with him that homophobia is hateful and ignorant. But it is not particularly scientific to say homosexuality developed for a reason, therefore it’s good…religion developed for a reason, but it’s obsolete now. What are his reasons for deciding one is good and the other is obsolete? His reasons are emotional rather than scientific. But I’m just being nitpicky here. I think the book was well-written, interesting, and approachable by a non-scientific audience. I had no issues with Hogan’s narration–he read the book well, but it wasn’t anything worth raving about.

Cro-Magnon, Brian Fagan


2012 Book 93: Cro-Magnon, by Brian Fagan (6/24/2012)

Categories: Science

Reason for Reading: Interest in the evolution of humans

My Review 4/5 stars
Cro-Magnon, by Brian Fagan introduces what is currently known (and speculated) about Cro-Magnons and Neanderthals. Fagan spices up his narrative with imaginative vignettes of Neanderthals and Cro-Magnons as they may have lived. I imagine such vignettes would appeal to most everyone in the general public, including teens, though they may be a little irritating to a hard-core scientist who isn’t interested in imaginative speculation (just a guess…I loved them!). Another excellent feature of this book is that it has incorporated historic scientific discoveries about prehistoric peoples with modern science like mitochondrial DNA tracing. Again, this feature would be of interest to most of the general public, but isn’t meant for experts–there are a lot of simplifications for the sake of clarity. I think this book is an excellent introduction to prehistoric peoples that could be enjoyed by both adults and teens (even precocious pre-teens).