Sperm whale has the largest brain on Earth, more than five times heavier than a human's. Sperm whales can live for more than 60 years. Spermaceti (sperm oil), from which the whale derives its name, was a prime target of the whaling industry, and was sought after for use in oil lamps, lubricants, and candles. Ambergris, a solid waxy waste product sometimes present in its digestive system, is still highly valued as a fixative in perfumes, among other uses. Beachcombers look out for ambergris as flotsam. Sperm whaling was a major industry in the nineteenth century, immortalised in the novel "Moby Dick".
Whale Rider because "she has done enough damage" with her presumption. Also, the largest whale traditionally belongs to the legendary Paikea. When Koro walks away, Pai climbs onto the back of the largest whale at the location and coaxes it to re-enter the ocean. The whale leads the entire pod back into the sea; Pai submerges completely underwater, and the spectators wonder if she has drowned, but are relieved when she comes back above sea level. When she goes out to sea, Nanny shows Koro the whale tooth which Pai had previously recovered. When Pai is found and brought to the hospital,