FormingaTheory

Darwinrealizedthatbeingisolatedontheislandsresultedinspecialadaptations.Thesechangeshappenedslowly.Then,overtime,newspecieswere formed.


Darwinwasn’ttheonlyscientisttothinkaboutevolution.Hisgreatcontributionwasthathecouldexplainhow andwhy evolutionoccurred.In1859,Darwinpublishedabook,OntheOriginofSpecies.Init,heproposedthatspeciesevolve,orchangeover time.

Españolacactus finch

largeground finch

Darwinalsosuggestedawayinwhichlivingthingsevolve.Naturalselectionsaysthatsomeplantsandanimalshavetraitsthatworkbestinaparticularplace.Theselivingthingsaretheonesthatwillsurviveand reproduce.


Darwin’sthinkinghelpedtochangehowpeoplesawthenaturalworld.Hewillalwaysbe remembered.