WARM UP “The greatest danger for most of us is not that our aim is too high and we miss it, but that it is too low and we reach it.” – Michaelangelo 1.What does this quote mean to you? 2.Do you agree with this? Why? 3.How can you apply this to evolution?
History of Evolutionary Theory
Creation __ BC Biblical, Native American, etc.
Major Change – Fossil Discoveries Some things are extinct and very old
Theory: Catastrophism 1800 Georges Cuvier All species created, but some extinct due to catastrophes
Theory: Inheritance of Acquired Characteristics 1800 Jean-Baptiste Lamarck Needs produce changes –Passed to offspring
Major Change – Geological Principle of Uniformity James Hutton and Charles Lyell Earth processes are very slow and steady
Major Change – Economics and Population Pressure Thomas Malthus As population size increases, more competition for resources –Strong survive
Major Change – Voyage of the Beagle Charles Darwin notes variation in traits
Theory: Natural Selection 1859 Charles Darwin Variations in traits affect an individual’s ability to survive –“Survival of the fittest” “Fittest” individuals reproduce –Pass along traits
Theory: Sexual Selection 1860’s Charles Darwin Some traits make organisms more successful at mating –Ornamentation
Red Queen Hypothesis 1980 Leigh van Valen
Red Queen Hypothesis 1980 If you stop evolving/changing you’re extinct –Other organisms can figure out how to “get you”
WRAP UP Do you agree with the Red Queen hypothesis? Why? Do you agree with the ideas of epigenetics from the “Sins of the Father” article? Why?
WARM UP “If you do what you’ve always done, you’ll get what you’ve always gotten.” – Tony Robbins 1.What does this mean to you? 2.Apply this quote to your current grade. 3.Apply this quote in some way to the theory of evolution.
WRAP UP List the four theories on evolution that have been developed over time, and who came up with them.