Sperm whaling

Sperm whaling is the human practice of hunting sperm whales, the largest toothed whale and the deepest-diving marine mammal species, for the oil, meat and bone that can be extracted from the cetaceans' bodies.

Sperm whales are prized for the sperm oil, a waxy secretion that was especially popular as a lubricant and illuminant during the Industrial Revolution, and so they were heavily targeted in 19th-century commercial whaling, as exemplified in Moby Dick. Sperm oil has since been replaced by the cheaper kerosene-based products, but another unusual product, ambergris, is still valued as a perfume fixative. Although the animal is classified as a vulnerable species and commercial whaling has been banned since the 1970s, aboriginal whaling in limited numbers is still permitted for subsistence, notably from two villages in Indonesia.