Evolution for dummies


Hi creationist. Take a seat.

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EVOLUTION IS CHANGE OVER TIME.

1. All creatures die.
Death is universal for all biological life.

2. Variations occur during reproduction.
Variations occur due to recombination of genes and random mutations.

This is evolution.  Evolution is a fact.

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NATURAL SELECTION IS THE NON-RANDOM SURVIVAL OF GENES.

1. Competition exists in nature.
Have a look at the bacterial growth curve, here.

2. Beneficial genes are passed on to the next generation.
owing to selective pressure(s), under different circumstances.

3. And to the next…
Play the “biomorph” simulation, here.

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MICRO/MACROEVOLUTION

1. Microevolution is small evolutionary change,
usually, but not always, over a short period of time.

2. Macroevolution is large evolutionary change,
usually, but not always, over a long period of time.

…No further difference…

Macroevolution is also observable.
To observe macroevolution, we have to pick
living things with shorter generations,
because otherwise we would have to wait millions of years,
and unfortunately, scientists don’t live that long!

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SPECIATION AS A MEANS BY WHICH DIVERSITY OF LIFE IS ACHIEVED.

 Speciation is the “branching off” of species.
by means of geographic isolation, etc.
Species is defined as a taxonomic group
“whose members can interbreed”.
When they can’t interbreed, they become different species.

Snapshots of speciation can be found in nature.
to define the three main stages:
1. interbreed without difficulty
2. interbreed with difficulty
3. cannot interbreed

 * * *

EVOLUTION ALGORITHM HAS OPTIMISATION POWER.

Evolution is not a process of chance.

Evolution is non-random.
The opposite of random is not design.

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EVIDENCE FOR COMMON ANCESTRY

Genetics.
Random article, here.

Evidence from biogeography.
My own post, here.

Evidence from paleontology.
Transitionals, here.

Vestiges and atavisms.
My own post, here.

Comparative anatomy, and more.
TalkOrigins page, here.

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FURTHER DISCUSSION

Evolution is true regardless of abiogenesis.
Abiogenesis is concerned with the origins of the first organism.
Evolution is concerned with what happens after.

Evolution does not state that given time,
a duck will give birth to a crocodile.

We did not evolve from monkeys.
See common descent, here.

Evolution does not violate the second law of thermodynamics.

Evolution is a fact and a scientific theory.
A scientific theory is higher than a fact,
because theory tries to explain fact.

Evolution is observable,
repeatable,
testable,
and falsifiable.

Darwin was wrong on many things,
The theory of evolution has ‘evolved’ a
long way since Darwin.

Creationism is not science.

Theory of evolution saves lives.

Thank you.

For a more extensive understanding of evolution, consult the textbook “Evolution” by Mark Ridley.

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