The Evolution of Man
Darwin had a question. Why were the species on the Galapagos islands so much like the species on the coast lines of South America?
The finches looked the same at first but closely looked at they varied slightly.
The Finches beak is adapted to it's environment and the food available on each island. Hence over time, the finches mutated to suit their environment.
Modifications over time
cousin's: the finches on the coast of South America.