ANTARCTICA - 1916: Members of an expedition team led by Irish explorer Sir Ernest Henry Shackleton pull one of their lifeboats across the snow in the Antarctic, following the loss of the 'Endurance'. (Photo by Hulton Archive/Getty Images)
ANTARCTICA - 1916: Members of an expedition team led by Irish explorer Sir Ernest Henry Shackleton pull one of their lifeboats across the snow in the Antarctic, following the loss of the 'Endurance'. (Photo by Hulton Archive/Getty Images)