CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

CHARLES DARWIN – ENGLISH TRAVELED AROUND THE WORLD ON THE BEAGLE – FAMOUS IN THE GALAPAGOS ISLANDS OBSERVED MANY SPECIES AND FOSSILS WHY DID SOME SPECIES SURVIVE WHILE OTHERS BECAME EXTINCT? NATURAL SELECTION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection. — Charles Darwin from "The Origin of Species" Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. Used by permission of Darwin Day Celebration (at DarwinDay.org),

CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

EVIDENCE OF EVOLUTION STRUCTURAL ADAPTATIONS –MIMICRY –CAMOUFLAGE Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

EVIDENCE OF EVOLUTION STRUCTURAL ADAPTATIONS –MIMICRY –CAMOUFLAGE –MILLIONS OF YEARS PHYSIOLOGICAL ADAPTATIONS –CHANGE IN A METABOLIC PROCESS –WHAT DO YOU HEAR ABOUT IN THE NEWS ABOUT SOME BACTERIA? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

WHAT OTHER INDUSTRIES WOULD BE WORRIED ABOUT RESISTANCE? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

OTHER EVIDENCE OF EVOLUTION FOSSILS ANATOMY –HOMOLOGOUS STRUCTURES Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

OTHER EVIDENCE OF EVOLUTION FOSSILS ANATOMY –HOMOLOGOUS STRUCTURES –ANALOGOUS STRUCTURES Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

OTHER EVIDENCE OF EVOLUTION FOSSILS ANATOMY –HOMOLOGOUS STRUCTURES –ANALOGOUS STRUCTURES –VESTIGIAL STRUCTURE –EMBRYOS WHAT IS ANOTHER EXAMPLE OF VESTIGIAL STRUCTURES? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

OTHER EVIDENCE OF EVOLUTION FOSSILS ANATOMY –HOMOLOGOUS STRUCTURES –ANALOGOUS STRUCTURES –VESTIGIAL STRUCTURE –EMBRYOS BIOCHEMISTRY –WHAT 2 THINGS? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

MECHANISMS FOR EVOLUTION DO POPULATIONS OR INDIVIDUALS EVOLVE?DO POPULATIONS OR INDIVIDUALS EVOLVE? WHAT IS A GENE POOLWHAT IS A GENE POOL HOW CAN THE GENE POOL CHANGE?HOW CAN THE GENE POOL CHANGE? –MUTATION –GENETIC DRIFT –GENE FLOW WOULD THESE THINGS EFFECT A LARGE POPULATION OR A SMALL POPULATION MORE?WOULD THESE THINGS EFFECT A LARGE POPULATION OR A SMALL POPULATION MORE? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

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CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

WHAT IS NATURAL SELECTION? NOW IT’S YOUR TURN – DRAW STABILIZING, DIRECTIONAL AND DISRUPTIVE SELECTION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

CHAPTER 15 – THE THEORY OF EVOLUTION CHARLES DARWIN EVIDENCE FOR EVOLUTION MECHANISMS FOR EVOLUTION NATURAL SELECTION SPECIATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

WHAT IS SPECIATION? GEOGRAPHIC ISOLATIONGEOGRAPHIC ISOLATION REPRODUCTIVE ISOLATIONREPRODUCTIVE ISOLATION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

WHAT IS SPECIATION? GEOGRAPHIC ISOLATIONGEOGRAPHIC ISOLATION REPRODUCTIVE ISOLATIONREPRODUCTIVE ISOLATION GRADUALISMGRADUALISM PUNCTUATED EQUILIBRIUMPUNCTUATED EQUILIBRIUM Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

WHAT IS SPECIATION? GEOGRAPHIC ISOLATIONGEOGRAPHIC ISOLATION REPRODUCTIVE ISOLATIONREPRODUCTIVE ISOLATION GRADUALISMGRADUALISM PUNCTUATED EQUILIBRIUMPUNCTUATED EQUILIBRIUM DIVERGENT EVOLUTIONDIVERGENT EVOLUTION –ADAPTIVE RADIATION CONVERGENT EVOLUTIONCONVERGENT EVOLUTION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

ADAPTIVE RADIATION – AN EXAMPLE OF DIVERGENT EVOLUTION Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.

CONVERGENT EVOLUTION – WHAT IS AN EXAMPLE? Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College.