: Adelie penguins perform the longest migration of any penguin, traveling up to 13,000 km to reach bare rock nesting sites. Top Documentaries & Media The Penguin Lessons (2024) - IMDb
: Instead of wings for flight, penguins have stiff, scale-like flippers used for "flying" underwater.
: Both parents usually take turns guarding the nest and foraging for fish, krill, or squid.
: They possess thick blubber and waterproof feathers coated in oil from a preen gland to stay dry and warm.