Monday, September 12, 2011
After our conversation on Thursday about why girls have long hair while boys have short hair, and why girls play with dolls while boys play with trucks, I searched online to see if there were any studies relating to the distinction between sex differences. I found an interesting article about a study that provided "the first evidence of a nonhuman animal in the wild that exhibits sex differences." The study followed chimps and watched how they played with sticks (the chimps form of dolls). They use these sticks to mimic childcare, and female chimps play with the sticks more than the male chimps do. The researchers "defined stick play among chimps as holding or cradling sticks, bark, small logs or vines, often tucking a piece of wood between the stomach and the thighs." From this article it seems that these sex differences are imbedded in our DNA. Does anyone find this strange or have any articles that counteract this one?