Gould

I think scientists tend to assume that their researches or studies are reasonable because they believe the results of their researches are derived from "objective" observation. However, their researches are actually influenced by their personal experiences or ways of thinking, and the social context or dominant trend. For example, in the age of Blumenbach most European people liked the ideas of progress and the cultural superiority of European ways, so the reseach of racial taxonomy was regarded as a way to prove the superiority of Caucasian or European. Thus, the results of their researches are likely to be favorable for only scientists and majorities. In other words, science is advantageous for intellectuals and dominant people, but it is unfavorable for uneducated people and minorities.

By the way, I agree to the Gould's theory that the racial diversity arose as a result of the differences of climates and topographies. This is because in my experience, though my skin color was yellow when I was little, it is brown now because probably I would often go outside and have been exposed to sunlight. Therefore, I think the racial diversity shows only the differnces of environment.