Charles DarwinCharles DarwinVoyage of DiscoveryVoyage of DiscoveryVoyage of DiscoveryVoyage of DiscoveryVoyage of DiscoveryVoyage of Discovery

Uhhh hem....Uhhh hem....Mr. Sapora PresentsMr. Sapora Presents

1931-19361931-1936Around the world aboard the H.M.S BeagleAround the world aboard the H.M.S Beagle

Charles Darwin Born in 1809

England

1831-1836 ~ HMS BeagleCharles Darwin ~ NaturalistCharles Darwin ~ Naturalist

1700’s & 1800’s Exciting Science Times

Biology and Geology become Sciences!!!!Biology and Geology become Sciences!!!!1735 1830

What does Darwin find here?What does Darwin find here?Let’s first take a look at what Let’s first take a look at what Darwin knew when he showed Darwin knew when he showed

up...up...

Before Geology...we had trolls

ProcessesProcesses& &

FeaturesFeaturesDeeeeeeeeeep TimeDeeeeeeeeeep TimeLaws of nature are constant over time and Laws of nature are constant over time and that scientists must explain past events in that scientists must explain past events in terms of processes they can observe in the terms of processes they can observe in the

present....present....

Hutton & LyellHutton & Lyell

Earthquake“The present is the key to the past”

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

Jean Baptiste Lamarck18091809

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.

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...

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 based A scientific explanation based on natural processes.on natural processes.

To Be Continued....

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