bioch22intropage - To differentiate between different...

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INTRODUCTION TO CHAPTER 22: Speciation (see Chapter 21), and its opposite, Extinction seem like logical concepts, but where is the evidence for them? Isn’t it also logical to assume that every new organism (or fossil) discovered there is a living species just like it, in some obscure, dusty corner of the Earth? In January for 1796, a French scientist named Georges Cuvier presented his reasoning behind extinction. The earth was explored enough that no new species of large land mammals would be found. Thus, if a fossil of a different species of land mammal was found, that species was extinct.
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Unformatted text preview: To differentiate between different species of fossils, Cuvier used two fields: comparative morphology and paleobiology. Cuvier, who is recognized as the father of comparative morphology [Study of the anatomical differences/similarities of different species], realized that there were defining anatomical characteristics in every organism. Cuvier is also credited as the founder of paleobiology. Paleobiology is a field where the...
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This note was uploaded on 01/18/2012 for the course ECON 101 taught by Professor Sei during the Spring '11 term at American Academy of Art.

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