Multiple choice Why do these finches have different types of beaks? the birds molded their beaks to be the most attractive because they all have different ancestors and are unrelated they evolved to have beaks best adapted to food available birds change their beak shapes daily to match what they eat Reveal answer Fill a bubble to check yourself C Correct answer Explanation Darwin's finches are a classic example of adaptive radiation, where different beak shapes evolved to exploit specific food sources available in their respective environments.