Darwanian & Modern Evolution
Charles Darwin
Misconceptions & Misunderstandings
Many people relate him to the well-known photo of a monkey transferring to a man
His theory is about the origin of life
Evolution is a "ladder of progress"
It was thought because evolution is not testable nor observable then it is not science
In his theory he used an example of Scientific Method
Reach conclusions
Test the hypothesis
Explanation (hypothesis)
Observation & Description
His theory of evolution
Evidence of ancient life
The "Finches"
Reptile-bird (had some feathers along with bones)...>DOES NOT exist today
the fossil fuel he found of a bird was very different than all bird we know now
Life evolves
Natural selection
"survival of the fittest"
His book "The Origin of Species"
All organisms have descended from a common ancestor
Brief Biography
In 1882: His death
In 1859: publication of his book "The Origins of Species"
He goes on the "Beagle" ship, as a naturalist
Enters Christ college, Cambridge
Born in February 1809
The Big question that comes to many people's minds once they hear "evolution"
Did humans really evolve from apes?
That is why we found Human & Chimpanzees' genes SIMILAR!
They simply share a common ancestor
Not even with Darwin's theory
NO!
Evolution as a cumulative change
Chemical scale
Formation of compounds in stars & changing into more complex compounds later on
Biological scale
Evolution of life
Geological scale
Formation of earth
Astronomical scale
BigBang, Formation of matter (H,He..)
What is evolution
How religion dealt with it
Churches tend in believing things & never make them change
it opposed Darwin's idea ofcourse
The church opposed it at the beginning
The MECHANISM
Through DESCENT & MUTATION (which is basically a change in genes)
HOW DOES IT WORK?
Through the process of GENETIC VARIATION" upon which selective forces can act in order for evolution to occur
It basically explains that what we see today is different from what existed in the past
Evidence of evolution after Darwin's work
Evidence for evolution
Neo-Darwanian evolution
Characteristics inherited & are called "Genes"
Variation within a population due to prescense of multiple alleles of a gene
"Random Genetic Drift"
genetic mutation rises between people & are passed to offsprings
Evolution & the process of science
Explanation & hypothesis
Communication to other scientists
Observation & description
Molecular evidence...> DNA
This study is a powerful evidence for evolution
Basically "How evolution wrks at the level of genes"
