Postcard from Terre Adélie, the French claim in Antarctica, showing a group, or a "waddle" as they are known, of emperor penguins. Emperor penguins are the largest penguin species, with an average height of 1.2 metres. Their diet consists primarily of fish, but can also include crustaceans and squid. In hunting, they can remain submerged up to 18 minutes, diving to a depth of 535 metres!
Stamp of DC4 plane from a 2012 series of six showing the evolution of transport in polar areas. DC4s were initially produced during World War II and continued to be used in civilian service through to the 1960s.