amout of food available
adaption of the finches to different environment
how finches use their beaks
The varieties of beak structures among Galapagos finches is a good example of adaptation. Temperature and food sourcing influence the development of the differing beaks.
beak structure
natural selection
beak structure
beak structure
beak structure
The beak
beak structure
adaptive radiation
He realized the the finches had been able to adapt to their natural surroundings to survive.