This happens to the most 'shocking' image of the set but the entire collection of images from the First Australasian Antarctic Expedition are fascinating. Here's the background info:

In 1911 a group of scientists and adventurers left Hobart under the leadership of Dr Douglas Mawson. They were bound for Macquarie Island and the then unknown parts of Antarctica. The scientists of the expedition produced information that later made an major contribution to knowledge of the region. The exploration of new lands established precedence to claims, formalised in 1936 as the Australian Antarctic Territory. Although James Francis (Frank) Hurley was the official photographer to the Australasian Antarctic Expedition, other members of the expedition also took photographs.

The result? Penguins and Shipwrecks, Working Huskies and, of course, Sea Elephant Skeletons. Seriously, browse the whole set.