Social darwinism refers to the white supremacist, colonial concept that non-Europeans are inherently inferior to Europeans, specifically Western Europeans. Social darwinism was aggressively spread by racist pseudo-scientists and sociologists who were interested in promoting a white supremacist worldview and justification for horrific colonial acts, such as slavery, land theft, political, social and economic oppression of non-white people, and outright genocide. The term "social darwinism" is inappropriately derived from Darwin's theories of evolution and his concept of "survival of the fittest". This term does not exclusively mean that the strongest and fastest animals survive, but also refers to how strong packs/herd/interspecies relationships aid in survival. As such, many biologists were deeply offended by the term "social darwinism" and correctly pointed out that the term was nothing more than pseudo-scientific racism.