query: How much does a male emperor penguin weigh?
passage: Emperor penguin
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.
passage: Brown pelican
The brown pelican is the smallest of the nine pelican species, but is often one of the larger seabirds in their range nonetheless. It measures in length and has a wingspan of . The weight of adults can range from , about half the weight of the other pelicans found in the Americas, the Peruvian and American white pelicans. The average weight in Florida of 47 females was , while that of 56 males was . Like all pelicans, it has a very long bill, measuring in length.