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Evolution (Charles Darwin (Hypothesized animals and humans had common…
Evolution
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Charles Lyell
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Wrote "Principles of Geology" which says scientists should explain past events in ways that can be observed.
James Hutton
Believed Earth was millions of years old, meaning there was time for evolution to take place.
Hypothesized that the formation of rocks took a very long time, which would support fossils.
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Thomas Malthus
His realization Made Charles Darwin believe the same about nature. Majority of species have many more offspring than humans; they may someday overrun the world.
Realized that if human populations went unchecked, there would soon be lack of space and food.