Class Notes (834,991)
Canada (508,850)
Biology (6,794)

03 - Oct 15 Evolution as a Theory.pdf

4 Pages
Unlock Document

Biology 1201A
Jennifer Waugh

Biol 1201A – F2012 Waugh The Theory of Evolution •What is a theory? •Historical development of evolutionary thought •Darwinian evolution •Road map for the evolution course What is a theory? commonvernacular: •an untested idea or opinion; speculation scientific definition: •an explanation of a set of natural phenomena, based upon proven or testable hypotheses and observations Examplesof scientific theories: • Early evolutionarythought static classification and characterization •Aristotle (384-322 BCE) & the Scala natura •NaturalTheology (1700s) •Carl von Linne & the Linnean system (1707-78) •le Comte de Buffon (1707-1788) but…vestigial  traits 1 Biol 1201A – F2012 Waugh Early evolutionarythought transformationaltheory of evolution Jean-Baptiste Lamarck(1744-1829) species evolve to better fit their environment birth RA birth RA birth time use/disuse inheritance of acquired trait A.Many cave-dwellingorganismsare blind and/or lack developedeyes. Payne (1910) raised 49 generationsof fruit flies in the dark. B.Weisman(1889) cut off the tails of 5 generations of rats. What do YOU think happenedin this experiment? Early evolutionarythought Geologicalpatterns Georges Cuvier (1769-1832) • believed in the fixity of species • changes in fossil forms a result of repeated catastrophic events and new creations (‘catastrophism’) Charles Lyell (1797-1875) • natural agentscurre
More Less

Related notes for Biology 1201A

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.