Tuesday, July 10, 2012 | Categories: Day 6 Blog
It's a natural substance that's worth almost as much as gold but almost nobody knows anything about it. Known as ambergris, this obscure material is used mainly for making perfume. Acquired from sperm whale feces, it's the object of desire of a mysterious cohort of traders and collectors who hope to get rich. In Floating Gold, biologist Christopher Kemp explores this little-known substance, and uncovers its strange history.
Photo Credit: Raphael Mazor