Toothed whale melon consists of fat, and the skull of any such creature containing a melon will have a large depression. The melon size varies between species, the bigger it is, the more dependent they are on it. A beaked whale, for example, has a small bulge sitting on top of its skull, whereas a sperm whale's head is filled mainly with the melon. Bottlenose dolphins have been found to have signature whistles unique to a specific individual. These whistles are used for dolphins to communicate with one another by identifying an individual. It can be seen as the dolphin equivalent of
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,