the emperor penguin is the world's largest and tallest penguin. It is also the heaviest penguin, with some individuals recorded at nearly 100 pounds. adults have a black head, back, tail , and black wings. the underparts are dingy white. . the sides of the neck are marked with a large golden or yellow stripe. in addition, there is a varying amount of gold on the upper breast. like mosr penguins, the Emperor penguin has thick, waterproof feathers that cover the entire body except for the bill and feet. Emperor penguins normally live about 20 years in the wild, though some individuals have been recorded at 40 years if age.