In Fiji the teeth are known as tabua , traditionally given as gifts for atonement or esteem called sevusevu , and were important in negotiations between rival chiefs. Marine Pollution Bulletin 60 — To make its clicking sounds, a whale forces air through the right nasal passage to the monkey lips, which clap shut. It is a member of the unranked clade Cetacea , with all the whales, dolphins, and porpoises, and further classified into Odontoceti , containing all the toothed whales and dolphins. Atlantic white-sided dolphin L. Your News is the place for you to save content to read later from any device. Are they called sperm whales because their body shape is similar to that of male sex cells, or is there another reason?
The Wonders of the Seas: Sperm Whales
How Did the Sperm Whale Get Its Name?
After 3 minutes of not breathing most humans have passed out and, if they don't start breathing soon, are heading for another existence. Lipotidae Lipotes Baiji L. Eschrichtius Gray whale E. Indo-Pacific bottlenose dolphin T. As a reaction to the irritation of all the squid beaks, the whale produces in its intestines a cholesterol derivative which has come to be called ambergris.
Facts, information and pictures for Sperm Whales.
But the sharp beaks irritate the stomach lining. The fossil record suggests that sperm whales were more common in the Miocene , where basal lineages such as Zygophyseter and Naganocetus existed; other fossil genera assigned to the Physeteridae include Ferecetotherium , Helvicetus , Idiorophus , Diaphorocetus , Aulophyseter , Orycterocetus , Scaldicetus , and Placoziphius , while kogiid fossil genera include Kogiopsis , Scaphokogia , and Praekogia. All species congregate in 'pods' or herds, consisting of mostly females, calves, and adolescent males, although these pod sizes are typically smaller in the kogiids. The sperm whale respiratory system has adapted to cope with drastic pressure changes when diving. However, sperm whale ivory contains a much thicker inner layer.
The Journal of Experimental Biology. The oversupply led in turn to the development of the European art of scrimshaw. American sperm whaling soon spread from the east coast of the American colonies to the Gulf Stream , the Grand Banks , West Africa , the Azores , and the South Atlantic s. In addition to the two that have been prepared for burial, it is hoped at least three will be buried tomorrow and possibly more. Marine Pollution Bulletin 60 — Native to subtropical waters, they were caught in by fishermen as far north as Alaska. Sperm whale Tim Stenton.