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.
Clearly, Darwin used the term correctly as it was meant when discussing natural selection. However, nowadays this term is often misunderstood when used in place of natural selection. A majority of the general public may be able to describe natural selection as survival of the fittest.