Darwanian & Modern Evolution

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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"