The article "Primate Studies and Sex Differences" by Sally Linton argues that most sex-role behaviors of primates and humans are learned within their social group. She also challenges the neglectful presumptions of scientists who have assumed differences in male/female sex-role behavior as being innate or inborn. She also points out the poor evidence of researchers of observing the natural behaviors of nonhuman primates in the wild, and tampering with the balance of male and female hormones in the animals. Moreover, they also failed to consider the importance of learned behaviors such as how to hunt, how to fly, and how to take care of infants. I agree her ideas about the different behaviors of primates and human beings are learned by their social group because genetic information was considered to be required for the development of instincts but not for learned behavior.
             Gender or sex role means a person's external behaviors that define him/her to society as a female or male. These actions are usually the socially acceptable behaviors for each sex. He or she is usually treated in different ways and learns what appropriate behavior for the assigned sex is and also what behaviors are prohibited. Men and women are different because of the way they are treated by their parents, their teachers, their friends, and their culture throughout life. And what is acceptable for a man or a woman to do in one society may not be acceptable in another society.
             In my native country, Myanmar (Burma) men are taught to be strong. As boys they are given guns to play with. The boys go with their fathers from time to time to help them on the farm or in the business. Moreover, men are also the leaders of the house. They go out to work for their family and bring money home. The women are taught to do housework. As girls, they are given dolls and kitchen sets to play with. The girls help their mothers while they cook by passing the foods to...