The term often leads into confusion, however, since international compact cars are somewhat larger than their North American equivalents, mostly because no supermini/subcompact size is manufactured by American, Mexican and Canadian car makers up to date.
By the late 1860's, Darwin came to describe this process as the survival of the fittest. This is very different from Lamarck's incorrect idea that the environment altered the shape of individuals and that these acquired changes were then inherited.
Spencer adapted Charles Darwin's notion of natural selection and applied the theory to human society in a philosophy that became known as Social Darwinism.. It was Spencer who coined the term survival of the fittest, using it to apply to the fate of rich and poor in a laissez faire capitalist society. Spencer argued that there was nothing unnatural -- and therefore wrong -- with competing and then rising to the top in a cut-throat capitalist world.