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What kind of questions might a person not familiar or a person who doesn't believe in evolution might ask?
- Why dont we see new species
- why do we still have monkeys
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what is evolution
- a change in the genetic structure of a population
- also used to refer to appearance of new species
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did humans evolve from monkeys of chimps?
NO
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when did earliest human ancestors evolve?
- 6-8 mya
- humans seperated from a monkey-like ancestory 20 mya
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why are monkeys still around then?
early primate lineage went went off in different directions after they separated from each other
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why dont we see new species then?
because with the exception of microorganisms new species take a long time to evolve, which we wont see over the course of our own lifetime. Only microevolutionary changes can be witnessed.
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why can evolution be controversial?
- it can go against biblical teachings and offend people who are religious.
- it is often considered a theory, or an idea or hunch
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where did the discovery of evolutionary principles take place?
western europe in the 16th century
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who was the first person to explain the basic mechanics of the evolutionary process?
Charles Darwin
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What theory did Charles Darwin come up with?
theory of natural selection
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what is natural selection?
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who along with Darwin came up with another theory of evolution?
Alfred Wallace
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fixity of species
- notion that species once created can never change
- opposes biological evolution
- christian inspired belief
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what is the "argument from design"
traditional, often religious and fixated belief that God deliberately designed everything that we see as they should be.
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when did the development of evolutionary theory come about?
- Europeans came across a major paradigm shift at the start of european exploration.
- things were not as concrete as they had originally considered
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what is paradigm shift?
- transition from one conceptual framework or prevailing and widely accepted viewpoint to another.
- ex. the acceptance of the discovery that the sun is the center of our solar system, not the earth.
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what is paradigm?
a typical model, idea, or pattern of something
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John Ray
- minister
- developed the concept of species
- recognized groups of plants and animals differed from other groups due to their ability to mate and produce
- he placed groups of reproductivly isolated organisms into categories that he called species
- first to use the labels genus and species
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reproductively isolated
- pertains to groups of organisms that mainly becuase of genetic differences are prevented from mating and producing offspringwith members of other groups.
- ex. dogs cannot mate and produce offspring with cats.
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Carolus Linnaeus (Carl Von Linne)
- swedish naturalist
- developed method of classifying plans and animals
- standaradized john ray's us of genus and species terminology
- established system of binomial nomenclature.
- added 2 more categories class and order which together came to be the 4 level system basis for taxonomy: genus, species, class, order
- classified humans in the genus homo and species sapiens category
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why was it unusual for Carl Von Linne's classification of humans?
humans are suppossed to be top of the food chain unique and separate
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taxonomy
branch of science concerned with the rules of classifying organisms on the basis of evolutionary relationships
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binomial nomenclature
two names in taxonomy established by Carolus Linnaeus
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Georges -Louis Leclerc de Buffon
french naturalist
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