1. History of Evolutionary Thought

2. Engage
Can you tell a chicken from a fish? A human from a turtle? -embryo.html
Sure you can…complete “Timing is everything” activity
When you are done get your INB ready for cornell notes on the History of Evolutionary Thought.

3. The Evolution of Evolution
Catastrophism  Uniformatiarianism
Lamarck  Darwin

4. Problems with Lamarck’s Theory of Evolution
Inheritance Of Acquired Traits
Traits Acquired During Ones Lifetime Would Be Passed To Offspring
What happened in MY’s?

5. Contributor’s to Darwin’s thinking included:
Charles Lyell - proposed earth formed MYA not thousands of years ago
Thomas Malthus – struggle for existence through available resources

6. Contributor’s to Darwin’s thinking included:
John Baptiste Lamarck 1700’s – Inheritance of acquired Characteristics and Law of Use and Disuse
Alfred Russel Wallace – came to the same conclusions as Darwin

7. Hardy-Weinberg – researched changes in allelic frequencies
Hardy-Weinberg – researched changes in allelic frequencies. For example, what might happen in a population of mice, if their ability to run quickly and escape predation was due to a single genetic trait?

8. Linnaeus
1st to group similar organisms and assign them Latin names (Taxonomy)
Binomial Nomenclature (Genus species)

9. Charles Darwin the Naturalist

10. Voyage of the Beagle
Charles Darwin
Wrote On the Origin of Species by Means of Natural Selection AKA The Origin
Fossil Record
Taxonomy
Comparative Anatomy
Comparative Embryology
Biogeography

11. Darwin returned 5 years later in 1836
Darwin Left England in 1831
Darwin returned 5 years later in 1836

12. The Galapagos Islands Very Different Climates
Small Group of Islands 1000 km West of South America
Very Different Climates
Animals On Islands Unique
Tortoises
Iguanas
Finches

13. What differences do you see in the Galapagos Islands Tortoises?

15. The Galapagos Islands Finches resembled a mainland finch
More types of finches appeared where the available food was different (seeds, nuts, berries, insects…)
Finches had different types of beaks adapted to type of food gathering…ex of:Speciation

16. How did the finch speciation occur
How did the finch speciation occur? What environmental, genetic, physical changes took place?

17. Explore your choice of activities
What a Beak Activity (UTDanaCtr) can be used to elaborate on speciation/ natural selection
Peppered Moth Activity (UTDanaCtr) can be used to elaborate natural selection due to environmental changes.
Easter Island Activity (UTDanaCtr) can be used for natural selection due to human impact
Natural Selection lab can be used
The pdf documents are attached.

18. Evidence of Evolution
Day three

19. Evolution Basics
Evolution is a gradual change in the characteristics of a species over time. The structures, behaviors, interactions, and internal processes observed in the millions of species on this planet are the result of the process of evolution.
Charles Darwin stated that evolution by natural selection explained how populations of organisms evolve.

20. Evidence to support Evolution
Embryology
DNA sequences
Fossils
Anatomical structures

21. 1. Embryology
Similarity in embryo development shows a close relationship (vertebrate embryos all have tail & gill slits)
Sure you can…complete “Timing is everything” activity

22. 2. DNA
by comparing the DNA sequences of two organisms or the amino acid sequences made from the DNA, scientists can learn which organisms are related; the more DNA two organisms have in common, the closer related they are

23. Using the table, compare the amino acid sequence of the chimp and the human.
Notice that for this protein the chimp and human have the exact same sequence.
Now compare the baboon and the human.
Notice that there are 5 differences in the sequence.
This tells you that the human is more closely related to the chimp than the baboon.

24. 1: GGC ATG TTA 2. GGC GTT TTA 3. GGC TCT TTA Pro Tyr Asn Pro Gln Asn
Pro Arg Asn

25. Fossils
In undisturbed layers of sedimentary rock, the deeper it is, the older it is.
Give us information about extinct species.

26. Anatomical structures
An inherited trait that increases the population’s chances of survival and reproduction is an adaptation

27. homologous structures:
structure with different functions found in different species and thought to be inherited from common ancestors
ex: whales, cats and birds all have the same # and type of bones in the forelimbs but their functions are different

28. analogous structures:
have the different structures but the same function & do not show a close relationship
Come up with your own examples

30. adaptation
vestigial organs
speciation
fossils
camouflage
mutation
mimicry
niche
species
extinction
common ancestor
Evolution
DNA Sequences
phylogeny
survival of the fittest
homologous structures
anatomical similarities
analogous structures
natural selection
embryology
sedimentary rock
variation