This poignant image (cheer up, buddy!) of a pup named "Blizzard" was taken in 1912 by Antarctic adventurer Frank Hurley, who two years later would be the photographer on Ernest Shackleton's famed Endurance Expedition. This shot is from the First Australasian Antarctic Expedition, which set out in 1911.

Over a period of years, Hurley visited the frozen continent six times and came away with a trove of stirring images. For more, check out Discover Collections: Hurley's Antarctica on the State Library of New South Wales's website.

[Image via the State Library of New South Wales via Flickr.]