FormingaTheory

Darwinbegantounderstand.Tosurviveontheislands,theplantsandanimalshadtochange.Thisiscalledadaptation.Thesechangeshappenedslowly.Then,overtime,newspeciesformed.Hecalledhisideathetheory of evolution.

Hewroteabookabouthisidea.Hewrotethatsomeplantsandanimalshavetraitsthatworkbestinsomeplaces.Thesetraitshelpedthelivingthingssurvive.Histhinkinghelpedtochangehowpeoplesawthenatural world.