The largest species of penguin is the Emperor Penguin, where adults of the species average about 1.1 meter tall and mass 30 or more kilograms. The smallest penguin species is the Little Penguin (also known as the Fairy Penguin), which is typically 35 to 40 cm tall and 1 kilogram. Generally larger penguins retain heat better and thus inhabit colder regions, while smaller penguins are found in temperate or even tropical climates.
Public domain picture from U.S. National Oceanic and Atmospheric Administration
See Great auk.
2. A British publisher.
3. A supervillain? who is encountered in the Batman comic books.