title: Emperor penguin
context: The emperor penguin (Aptenodytes forsteri) is the tallest and heaviest of all living penguin species and is endemic to Antarctica. The male and female are similar in plumage and size, reaching 122cm (48in) in height and weighing from 22 to 45kg (49 to 99lb). The dorsal side  and head are black and sharply delineated from the white belly, pale-yellow breast and bright-yellow ear patches. Like all penguins it is flightless, with a streamlined body, and wings stiffened and flattened into flippers for a marine habitat.
question: How much does a male emperor penguin weigh?
answers: The male and female are similar in plumage and size, reaching 122cm (48in) in height and weighing from 22 to 45kg (49 to 99lb)