Final answer:
The evolution of flight in insects, bats, birds, and extinct reptiles, with their development of wings, is an example of convergent evolution where similar traits evolve independently in unrelated species.
Step-by-step explanation:
The ability of insects, bats, birds, and extinct reptiles to successfully evolve the capability to fly is an example of a biological character known as convergent evolution. This term describes how different species have independently developed similar traits, such as the ability to fly, even though they do not share a common ancestor. The evolution of flight in these different groups involved the development of wings, which are considered analogous structures; they serve the same function and can look similar, but arose from different origins. For instance, insect wings are a new evolution, while vertebrate wings (found in bats and birds) arose from preexisting limb structures. This fascinating evolutionary process underscores how different organisms can arrive at similar solutions to the challenges posed by their environments.