The largest member of the penguin order is the emperor penguin (Aptenodytes forsteri). Some emperor penguins can grow as long as 1.3 meters (about 4.3 feet) and weigh as much as 45 kg (100 pounds). Although they are sometimes confused with king penguins (A. patagonicus), adult emperor penguins are colored black and white with areas of orange and yellow on the head, neck, and breast.
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