BIO152H5 Chapter Notes - Chapter 22: Georges Cuvier, James Hutton, Selective Breeding
Document Summary
Aristotle species do not evolve, they are fixed. George cuvier discovered that a layer of rock in the ground (stratum) if it was older, it. Linnaeus developed the taxonomy system was fossils were more dissimilar to current life forms. Cuvier also observed that certain species appeared and disappeared in between the layers of fossils. He brang up the idea of catastrophism: that species disappeared due to natural disasters, to oppose the idea of evolution. James hutton and charles lyell the mechanism of evolution is slow and constant, uniformitarianism (the same geologic processes, at the same rate, in the past are occurring as of today). Known for proposing an incorrect hypothesis to how evolution occurs. He explained his findings using two main principles: use and disuse parts of the body used extensively are kept while parts not used as often are disregarded and removed.
