The Emperor penguin (Aptenodytes forsteri) is the tallest and heaviest of all living penguin species and is endemic to Antarctica. Like all penguins, it is flightless, with a streamlined body, and wings stiffened and flattened into flippers for a...
The King penguin (Aptenodytes patagonicus) is the second largest species of penguin. This species was exploited commercially in the past for its blubber, oil, meat, and feathers but today, it is fully protected.
Aptenodytes ridgeni, also referred to as Ridgen's penguin, is an extinct species of penguin from the Pliocene of New Zealand. It was intermediate in size between its living congeners, standing an estimated 90–100 cm tall. The remains were first...
