Normal skull thickness has been measured in a general hospital population of 300 blacks and 200 whites in America. In both groups, there is a rapid increase in skull thickness during the first two decades of life, followed by a small uniform increase reaching a …

2021年7月8日 · Morton, who was white, used the skulls of the 51—as he did all of those in his collection—to define the racial categories and hierarchies still etched into our world today. After his death in 1851, his collection continued to be studied, added to, and displayed.

2023年3月7日 · Based on careful analysis, skulls are commonly categorized into three basic groups: European, Asian and African. Although the methods for determining origin are not 100 percent accurate, and many skulls may be a combination of ethnicities, they are useful for getting a general idea of race and origin.

2023年8月12日 · These maps show the landscape of human skull shapes: round, long, and in between. “Long” and “short” heads were seen as elements of racial categorization.

2003年3月1日 · Jensen and Johnson's study, based on head size measurements of over 7000 sibling pairs, showed the within-family relation for Blacks, as for Whites. When Blacks and Whites were matched for IQ, the Black–White difference in head size disappeared.

The skull as an object of analysis has played an important role in sorting people into types based on assumed racial differences. The scientific study of differences in skull shape and size was mobilized to provide a biological foundation for race and racial hierarchies.

1976年4月10日 · The skull thickness in Black and White adults of both sexes was studied in Rhodesia by two methods. White women have the thickest, and White men the thinnest skulls. The skulls of women are thicker than those of men in both ethnic groups. The differences are shown to be statistically significant.

2021年10月19日 · One trait, called the post-bregmatic depression, is a small indentation located on top of some people’s heads. For a long time, forensic anthropologists assumed that if the skull was indented,...

Asian skulls tend to have distinctive shovel-shaped upper incisors. African skulls can have more rectangular-shaped orbits when compared to European and Asian skulls. The nasal aperture is usually wide and the nasal bridge tends to be very flat. The jaw often protrudes significantly from the rest of the face, which is known as prognathism.

Normal skull thickness has been measured in a general hospital population of 300 blacks and 200 whites in America. In both groups, there is a rapid increase in skull thickness during the first two decades of life, followed by a small uniform increase reaching a …