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The Theory of Evolution
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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
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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
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