Significance of Darwins Finches
Does not have anything to do with Darwins research, just that it was carried out in the Galapagos islands where Darwin did research
Galapagos had major drought in Island of daphne major
Hurricane Wiped out small, soft seeds
Then, Finches: had to switch to eat larger, harder seeds…smaller beaks had a hard time opening these up and spent energy here and could not invest energy in reproduction.
Hence, selection for larger beaks!
After drought, numbers stabalized again