Final answer:
The wings of butterflies, bats, and birds are an example of convergent evolution since they have similar functions but evolved independently from different ancestors.
Step-by-step explanation:
The wings of butterflies, bats, and birds are indeed an example of convergent evolution, which is the process where organisms not closely related independently evolve similar traits as a result of having to adapt to similar environments or ecological niches. In the case of these flying animals, while all possess wings that serve the function of flight, these structures are analogous, meaning they serve similar functions but evolved independently without a common ancestral origin.
The development of wings in these creatures is a classic example of convergent evolution because although the function (flying) is the same, the anatomical structures came from different evolutionary paths in each lineage, indicating different ancestors for butterflies, bats, and birds.