A bull sperm whale can grow to 20m (67ft) long and is the largest living toothed animal. They are named after the waxy oil in ...

It also contains a cavity large enough for a small car to fit inside which holds a yellowish wax known as spermaceti oil, ...

They are named after the waxy oil in their heads, called spermaceti, which was previously used in oil lamps and candles. Image caption, Whale disentanglement teams are trying to free the whale ...

and at intervals held it to their nostrils. the Watery. well no more. CHAPTER 107.D. it had been a very precious perishing smothered in the very whitest and daintiest of fragrant spermaceti coffined.

Called spermaceti, it is believed to assist in echolocation and the whale’s buoyancy. Though generally spotted off Malaysia, Indonesia, Brunei and Cambodia between April and July for feeding ...