A. beak structure
Darwin observed that the finches on the different islands had varying beak shapes and sizes, each adapted to the specific food sources available on their respective islands. This variation in beak structure led Darwin to develop his theory of natural selection, as he realized that the finches with better suited beaks for their environment were more likely to survive and reproduce, passing on their advantageous traits to future generations.
Charles Darwin used what he saw on the Galapagos Islands to inform himself about natural selection.
What specific differences about the finches on the Galapagos Islands were of great interest to Darwin?
A.
beak structure
B.
feathers
C.
flight patterns
1 answer