01:119:115 Lecture Notes - Lecture 19: Darwinism, Carl Linnaeus, Binomial Nomenclature
18 Dec 2016
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Lecture 19 - darwinian evolution: pre-darwinian ideas, early scientists concluded - no change/evolution. Aristotle 384-322 bce scala naturae and the first classification of life. Each species was it"s on step on a ladder. Carolus linnaeus developed the concept of binomial nomenclature (two names) Catastrophism - at each rock layer a major catastrophe had occurred. The deeper you dig the more dissimilar the plants and animals are. Landforms by mechanisms that are currently operating in the world. The natural laws that operate now, have always been operating. Mountains are built by deposition and broken down by erosion. Always been happening since earth has been in existence: lamarck"s hypothesis of evolution (change) - 1809 characteristics. Lamarck hypothesized that species evolve through inheritance of acquired. Remember he could not know mendel"s research, that was years later. Animals would make changes to their own phenotype. Darwinian ideas about evolution: research background (fig 22. 5) 1858 received manuscript from lord russell wallace.
