1. Charles DarwinCharles Darwin
Voyage of DiscoveryVoyage of Discovery
Voyage of DiscoveryVoyage of Discovery
Voyage of DiscoveryVoyage of Discovery
Uhhh hem....Uhhh hem....
Mr. Sapora PresentsMr. Sapora Presents
1931-19361931-1936
Around the world aboard the H.M.S BeagleAround the world aboard the H.M.S Beagle

2. Charles Darwin
Born in 1809
England

3. 1831-1836 ~ HMS Beagle
Charles Darwin ~ Naturalist
Charles Darwin ~ Naturalist

4. 1700’s & 1800’s
Exciting Science Times
Biology and Geology become Sciences!!!!Biology and Geology become Sciences!!!!
1735 1830

5. What does Darwin find here?What does Darwin find here?
Let’s first take a look at whatLet’s first take a look at what
Darwin knew when he showedDarwin knew when he showed
up...up...

6. Before Geology...we had
trolls

7. ProcessesProcesses
&&
FeaturesFeaturesDeeeeeeeeeep TimeDeeeeeeeeeep Time
Laws of nature are constant over time andLaws of nature are constant over time and
that scientists must explain past events inthat scientists must explain past events in
terms of processes they can observe in theterms of processes they can observe in the
present....present....
Hutton & LyellHutton & Lyell

8. Earthquake“The present is the
key to the past”

10. Biology
1700’s -early 1800‘s what’s the story?
1700’s -early 1800‘s what’s the story?

11. Jean Baptiste Lamarck
1809
1809
Suggests that organisms could change during their lifetimes
by selectively using or NOT using various parts of their
bodies.
Traits altered by an individual organism during its lifetime he
called: Acquired CharacteristicsAcquired Characteristics
Principle of Acquired Characteristics:Principle of Acquired Characteristics:
Characteristics acquired by an individual organism could be
passed on to their offspring.

12. Malthus
❖ If the human population grew unchecked there wouldn’t
be enough living space and food for everyone.
❖ War, famine, disease, etc. keep populations “in check”.
❖ Malthus did put coal in little kids stockings too...

13. What’s Next?!
Darwin was convinced that species evolved by the
time he read Malthus. What was Darwin
missing for his explanation on evolution?
A Mechanism!A Mechanism!
A scientific explanation basedA scientific explanation based
on natural processes.on natural processes.
To Be Continued....

14. 60 sec 1 min # sec
8760 1 year 31,536,000
#cm / #sec = cm/per sec#cm / #sec = cm/per sec
x sec
* cm/sec cm
1cm = .
01m
m = #cm * .01