If you have ever seen a penguin walk or swim, you must have wondered why can’t penguins fly. After all, penguins flippers look like wings, and their bodies are covered in feathers. Even when penguins swim through water, the swimming motion makes it look like they are flying. The reason behind the flightlessness of penguins goes into their physiology, biology, and evolutionary traits.
Penguins are one of the few flightless birds, but they are unique because they have evolved to swim and hunt underwater. Penguins also live in extreme weather conditions of the Antarctic region which makes it difficult for them spend energy in flying and instead of wings, they have evolved to grow flippers that help them in swimming.