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Ambergris has been used since ancient times in perfumes, medicines and food. It is still used as a scent and fixative in perfumes, and even in drinks and delicacies. It is described as having a musky, animalistic, sweet smell.
Ambergris comes from sperm whales' digestive tracts. It is thought to protect the whale's stomach from sharp objects that the whale eats, such as the beaks of large squid. Ambergris is then expelled into the ocean as waste. Ambergris has an earthy, almost sweet smell.