Opposition to miscegenation, framed as preserving so-called racial purity , is a typical theme of racial supremacist movements. Although the term "miscegenation" was formed from the Latin miscere "to mix" plus genus "race" or "kind", and it could therefore be perceived as value-neutral, it is almost always a pejorative term used by people who believe in  racial superiority and purity. In Spanish America, the term mestizaje , which is derived from mestizo —the blending of European whites and Indigenous peoples of the Americas , is used to refer to production of offspring by people considered to be of different racial types. In the present day, the word miscegenation is avoided by many scholars, because the term suggests that race is a concrete biological phenomenon, rather than a categorization imposed on certain relationships. The term's historical use in contexts that typically implied disapproval is also a reason why more unambiguously neutral terms such as interracial , interethnic or cross-cultural are more common in contemporary usage. These words, much older than the term miscegenation , are derived from the Late Latin mixticius for "mixed", which is also the root of the Spanish word mestizo.
Metrics details. In , evolutionary biologist J. The analogy comparing human races to dog breeds is not only widespread in history and pop culture, but also sounds like scientific justification for eschewing the social construction of race, or for holding racist beliefs about human nature. Speaking to everyone without expert levels of familiarity with this material, we investigate whether the dog breed analogy for human race stands up to biology. It does not. By the end of this paper, readers will understand how the assumption that human races are the same as dog breeds is a racist strategy for justifying social, political, and economic inequality.