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Descent with Modification.
Research in Ecology
A tale of bacteria.
WHERE DID FLESH-EATING BACTERIA COME FROM?
Microevolution!(Genetic change in populations over generations.)
Lots of things evolve.
Cars
Lots of things evolve.
Languages
Lots of things evolve.
Hair styles
Lots of things evolve.
Religions
Organic evolution
Is the change—over generations—of populations of living things.
TheodosiusDobzhansky,Geneticist(1900 – 1975)
“Nothing in Biology makes sense, except in the light of evolution.”
-- Theodosius Dobzhansky
Do you believe in evolution?
Dr. Krempels sez…
NO
Why not? Observable evidence provided by radiometric dating
and other scientific methods make me accept the fact that the Earth is billions of years old.
Physical evidence: DNA & morphological homology
Physical evidence: Embryo development homology
Physical evidence: Biogeography and fossil evidence
Remember…
Science is based on knowledge gained by observation of physical evidence.
Religion is based on faith in that which cannot be observed.
Unlike religious dogma, scientific inferences are subject to revision as new data become available.
So, to answer your question: No, I do not believe in evolution. I accept it as the most logical explanation for observable fact.
Belief is not an issue.
What is evolution?
Is evolution
“only a theory?”
What is evolution?
What is an “evolutionist”? Or a “Darwinist” ?
Evolution is a process.
Darwin was a person. (His ideas are Darwinian.)
What is evolution?
Definition of IDEOLOGY a : a systematic body of concepts
especially about human life or culture b : a manner or the content of thinking
characteristic of an individual, group, or culture
c : the integrated assertions, theories and aims that constitute a sociopolitical program
What is evolution?
Evolution is NOT an ideology.
Evolution is an observable, natural process.
What is Evolution? evolution - change over timeorganic evolution - change in living
populations over time
microevolution - genetic changes within a species over time
macroevolution - generation of new species from a common ancestral lineage over time
Common misconceptions
“Evolution is a theory about the Origin of Life.”
INCORRECT!
evolution is how life changes, not how it got here.
Common misconceptions
Let’s take a nominations:
Which species is the most highly evolved?
Common misconceptions
“Evolution is a process by which species become better over time.”
INCORRECT!
Common misconceptions
“Evolution is a process by which species become better over time.”
Evolution has no value system.Much of it happens due to random chance!
Common misconceptions
“Evolution is driven by organisms’ need for a particular trait.”
INCORRECT!
Common misconceptions
“Evolution is driven by organisms’ need for a particular trait.”
An adaptive trait will be passed on to the next generation.
But a species won’t be given the gift of an adaptive trait just because it “needs” it.
Common misconceptions
“Humans evolved from monkeys.”
INCORRECT!•Living species don’t evolve from each other.
•But related species share a common ancestor.
If you’re sitting here…
You are the product of successful ancestors who passed their
adaptive traits on to you.
This is true of all living things,
From the most flamboyant vertebrates
…to the humblest bacteria.
Evolution by means of Natural Selection.
Any questions?
