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→Charles Darwin "On the Origin of Species"
: [[Charles Darwin]] took [[Jean-Baptiste Lamark|Lamark]]'s '''theory of evolution''' and proposed a different cause.
: When visiting the Galapagos Islands [[Charles Darwin|Darwin]] noticed that on each [[island]] there were a group of [[bird]]s called Finches which has slightly different features on each [[island]].
: The environment on each [[island]] was slightly different and those features seemed to make the Finches perfectly suited to their own [[island]].
: [[Charles Darwin|Darwin]] proposed this was caused by [[Natural Selection]] which was based on three [[observation]]s:
#There is [[variation]] within a [[species]].