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