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The Theory of Evolution • • • • • Charles Darwin Evidence for evolution Mechanisms for evolution Natural selection Speciation www.darwinday.org/englishL/life/beagle.html www.darwinday.org/englishL/life/beagle.ht Used by permission of Darwin Day Celebration (at DarwinDay.org), 2006 I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection. —Charles Darwin from ”On The Origin of Species" http://evolution.berkeley.edu/evolibrary/home.php The Theory of Evolution • • • • • Evidence of evolution • Structural adaptations – Mimicry – Camouflage • Takes a long time Charles Darwin Evidence for evolution Mechanisms for evolution Natural selection Speciation http://evolution.berkeley.edu/evolibrary/home.php http://science.howstuffworks.com/animal-camouflage2.htm http://evolution.berkeley.edu/evolibrary/home.php 1 Evidence of evolution • Structural adaptations – Mimicry – Camouflage – Millions of years • Physiological adaptations – Change in a metabolic process • What do you hear in the news about some bacteria? Other Evidence of Evolution • Fossils/Geologic Time - how much time? • Anatomy – Homologous structures - common ancestry What other industries would be worried about resistance? Other Evidence of Evolution • Fossils - anatomy from fossils • Anatomy – Homologous structures - common ancestry – Analogous structures - similar structure - not ancestry http://evolution.berkeley.edu/evolibrary/home.php 2 Other Evidence of Evolution • Fossils • Anatomy – Homologous structures – Analogous structures – Vestigial structure – Embryos Other Evidence of Evolution • Fossils • Anatomy – Homologous structures – Analogous structures – Vestigial structure – Embryos • Biochemistry – Which 2 molecules? What is another example of vestigial structures? Evidence of evolution • Structural adaptations – Mimicry – Camouflage • Physiological adaptations – Change in a metabolic process • Fossils • Anatomy – Homologous structures – Analogous structures – Vestigial structure – Embryos • Biochemistry 3