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What did Darwin mean when he thought possibly organisms started on the main land, then changed over time?
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What did Darwin mean when he thought possibly organisms started on the main land, then changed over time?

User Wolfyuk
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Answer:

He reasoned that plants or animals that arrived on the Galapagos Islands faced environmental factors that were different from those on the mainland. Perhaps, the species gradually changed over many generations and became better adapted to the new environment. Evolution.

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User Cristian Vat
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