ANT 101 Lecture Notes - Lecture 6: Anatomically Modern Human, Jean-Baptiste Lamarck, Carl Linnaeus
13 Sep 2017
School
Department
Course
Professor
Document Summary
Jean baptiste lamarck: first scientist to produce an explanation for evolutionary process. Traits that parents acquire during their lives are passed on to their offspring who will then have their same traits. Darwin: notion of natural selection. (wallace had similar ideas as darwin. ) A trait must be inherited (not acquired) to have importance in natural selection. Natural selection cannot occur without variation in inherited characteristics. Fitness= reproductive success: a relative measure that will change as the environment changes. Species can produce offspring faster than food supply increases- competition. Biological variation occurs within all species, and this variation is inherited. Favorable variations are passed on to future generations (genetics- unknown to darwin). Over time, favorable variation produces significant differences (speciation). Darwin: studied galapagos finches as a way to show natural selection in bird species.
