What do feminists think of this study that proves that feminism is a farce?

In addition, the latest issue of the New Scientist magazine (25 December 2010, p. 13) states that Sonya Kahlenberg, of Bates College, in Lewiston, Maine and Richard Wrangham, of Harvard University have found that chimpanzees use sticks as dolls, and most of those doing so are females.