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 In 1858, Charles Darwin received a letter from Wallace, in which Darwin's as-yet-unpublished theory of evolution and adaptation was precisely detailed.
Evolution. Evolution was Charles Darwinâs idea wasnât it? Not exactly. Darwin is really most famous for his work on natural selection, and his work, Origin, is correctly titled: On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life (quite a title!).