A pair of emperor penguins and their chick.
emperor penguin definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
the largest penguin (Aptenodytes forsteri), found only in Antarctica and growing to four feet in height
emperor penguin definition by American Heritage Dictionary
A large penguin (Aptenodytes forsteri) of Antarctic regions, having yellow-orange patches on the neck.