PENGUINS
'(<a href="http://www.j-archive.com/media/2011-01-20_DJ_27.wmv">Lindblad and <i>National Geographic</i> naturalist Tom Ritchie delivers the clue from Antarctica.</a>)  Because the chicks of this largest penguin take so long to mature, females lay their eggs in winter so that the chicks can be independent by summer'
the emperor penguin