Famous Darwin's Finches
One of the biggest icons of macro evolution, one species turning into an entirely different species given a large amount of time, are the Darwin Finches of the Galápagos Islands. These finches have been seen to sport clearly different beak sizes, that many have attributed to the birds changing their genetics to adapt to different foods available. However recent knowledge proves the finches do not prove evolution for 3 major reasons.
- The beak changes are NOT due to genetic mutation.
- The beak changes have been proven to be affected by diet and not by environment.
- The beaks have been found to change and revert back the very next generation. The beak changes don't stick over subsequent generations, as evolution REQUIRES.
- Weather however does effect nut shell hardness which triggers these temporary beak adaptations.