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the process by which organisms have changed over time

Darwin's Pattern of Diversity

Species vary globally

Darwin's Pattern of Diversity

Species vary locally

Darwin's Pattern of Diversity

Species vary over time

Darwin's Discovery

Different, yet ecologically similar, animal bspecies inhabited separated, but ecologically similar, habitats around the globe

Darwin's Discovery

Different, yet related, animals species often occupied different habitats within a local area

ex. Tortoises on Isabela and Hood Island

Darwin's Fossil Discovery

Some fossils of extinct animals were similar to living species

Hutton and Lyell

Concluded that Earth is extremely old and that the processes that changes Earth in the past are the same processes that operate in the present- influenced Darwin

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