De cómo la biología asume la existencia de razas en el siglo XX

Experiments in biology that examine the existence of racial types seem to have been modulated by human rights movements from middle 20th century. In an attempt to acknowledge this hypothesis we will start our analysis in the 18th century, passing through the 19th century and finally briefly discussing the 20th century general situation. Thus, the present work has three main sections. In the first two sections, we will discuss the different forms races were classified and hierarchically ordered in the 19th century. In the third section, we will deal with 20th century problematic, dividing it in...