The '94 book "The beak of the finch" [1] documents something similar. Natural selection in finches can respond to environmental changes that quickly that the re

The '94 book "The beak of the finch" [1] documents something similar. Natural selection in finches can respond to environmental changes that quickly that the researchers could see differentiation in action. [1] https://en.m.wikipedia.org/wiki/The_Beak_of_the_Finch https://en.m.wikipedia.org/wiki/The_Beak_of_the_Finch