1. The thesis of the article is that by the mean of evolution, human are designed to be polygyny

2. Males try to have as many wives as possible so that he can pass reproduce more offsprings and when he was away from his wife for a period of time, he will produce more sperms to beat the possible rival, from his absence, in reproduction from his wife.
Females seek for resources and protection of her offspring from male. If a male cant provide all of it to her, she will cheat her male by cheating with another male who can provide her the lacking element.

3. the article says that monogamy is just not in our nature, and current situation of economic inequality makes it harder to achieve monogamy. however, we are different from animals governed solely by the nature. our mind is very flexible and our environment can do bring a big change in shaping our behavior and foremost we are animal of morality which can control our behavior over our nature, to do that, however, we will have to understand our nature of polygyny.

4. the last paragraph of the article states that we. human, are capable of having a concious-directed life. however, to have such life it is essential to understand how we are immoral and nature-directed animals.

5. this article was very interesting in a way that people's "fooling" around can scientifically explained. however it was a bit awkard to think that our unconscious actions have its basis on such 'animal-like' nature of us. in the article it said bigger body size of male is one of the evidence of the polygyny of human. as i read the article a question arouse; these days however, men's average body size are getting larger then does that mean that men are tilting more towards polygyny than we already are? but average size of women is growing as well, then is it a change toward monogamy or is it just due to the better neutritional condition we have?

-everything psychological is simultaneously biological:
all the psychological expressions triggers or derives from a biological reaction in our body.
that mind and body are connected and cannot be separated from each other.








-the nervous system is complexity bulild from simplicity:
the nervous system is basically a network setup by simple neuron cells and all the neurons in the network can do is to decide to fire or not to fire.











-the brain is both specialized and integrated:
each section of brain is specialized for one type of task (e.g. regulating heartbeat) however each of such sections work together to keep the person alive!!!

-the nervous system is "plastic" especially at early ages of development:
when an infant is born s/he has a lot to learn therefore they have way more neurons than we have right now, although most of them are just individual neurons. as they grow up, the neurons form the network that will fit into the experience will be getting. If some part of the brain is damaged, the rest of the brain will compensate the damaged part.

A Boy without a Penis:

This article clearly shows the limit of the our science. Through researches the researchers found out that the hormones mostly decides the differences between the males and females. In this case although the boy was treated with the female hormones and was nurtured as a girl. He refused the nurture and turned towards the his nature.
why would that be? when he had a 'scientifically' arranged environment and biological changes to be a girl. how did he feel that something was wrong? this incident of the boy proves the limit of nurture current science can offer to change something from the nature.