It’s the classic case of mistaken identity! Penguins, with their tuxedo-like attire, often get mislabeled as mammals. But hold your mammalian horses! Penguins are birds. Sure, they can’t fly, but they’ve got flippers for swimming, not wings for soaring. Picture a penguin waddling to a black-tie event – the epitome of avian elegance. So, to answer your question, no, penguins are not mammals; they’re the James Bonds of the bird world, suave, sophisticated, and definitely not in need of a fur coat.