In December 1912, 30-year-old Douglas Mawson lost most of his supplies while exploring uncharted territory in Antarctica. The story of his survival:

“For three hours, Mawson and Mertz called into the depths, hoping against hope for an answering cry. They had far too little rope to lower themselves into the crevasse to search for their companion. At last they accepted the inevitable. Ninnis was dead. Gone with him were the team’s most valuable gear, including their three-man tent, the six best huskies, all the food for the dogs, and nearly all the men’s food.”