One of the main differences between skin rashes and hives is the way that they appear on the skin. The raised, red bumps that are hives are eruptions on the surface of the skin. Rashes are a skin discoloration and will only appear slightly raised from the skinâs surface.
Alfred Russel Wallace, codeveloper of the theory of evolution. The image is modified from http://www.prs.k12.nj.us/schools/phs/science_Dept/APBio/Natural_Selection.html. In 1858, Charles Darwin received a letter from Wallace, in which Darwin's as-yet-unpublished theory of evolution and adaptation was precisely detailed.
Charles Darwin is known for his evolution by natural selection theory, commonly known as survival of the fittest. But his legacy reaches further than that. He also made major contributions to the field of psychology. Natural and Sexual Selection. Charles Darwin developed the theories of natural and sexual selection. Natural selection is the mechanism by which the variants within a species that are most fit to survive in their environment triumph in the reproductive game against other species with less fit variants.