PSYC 3420 Lecture Notes - Lecture 2: Hms Beagle, Thomas Robert Malthus, Ontogeny
16 Oct 2016
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Overview of darwinian theory - inception and implications. Traditional explanations: differential experience: evolutionary explanations: ancestral division of labor. Lamarck"s theory of acquired characteristics: organisms are always adapted to their environments, environments change over time, laws of use and disuse. The more you use, and exercise a body part, the more the growth of that body part: structural changes passed to the next generation, giraffes growth of the neck. *darwin"s theory is not the theory about the origins of life, it is about the process of change - change over time* *darwin"s insight in regards to species observed on these island: species change, aren"t in xed form, change overtime. Why do species change: adaptation: animals that survive are the ones best suited to the environment, key in uences, arti cial selection: breeding for traits, thomas malthus: essay on principle of populations - competition for resources.
