Douglas Mawson

It was unknown at the time that Husky liver contains extremely high levels of vitamin A. This was soon followed by violent raging—Mawson had to sit on his companion's chest and hold down his arms to prevent him damaging their tent. Instead both he and his mentor Edgeworth David stayed an extra year.

Sir Douglas Mawson OBE FRS FAA (5 May 1882 – 14 October 1958) was an Australian geologist Antarctic explorer and Academic. Along with Roald Amundsen Robert Falcon Scott and Ernest Shackleton Mawson was a key expedition leader during the Heroic Age of Antarctic Exploration.