They also have the largest brain out of any animal known to exist. Female sperm whales on the other hand tend to be much smaller growing to lengths of 34 — 38 ft. The head of the whale contains an organ known as the spermaceti organ, hence its name, which was once believed to produce sperm, but has since been proven to serve another unknown use. Some researchers believe that the spermaceti organ assists the whale with buoyancy by allowing the whale to adjust the fluid balance and consistency within its head; after all the sperm whale is the deepest diving animal in the cetacean family.
It is the only living member of genus Physeter and one of three extant species in the sperm whale family , along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia. The sperm whale is a pelagic mammal with a worldwide range, and will migrate seasonally for feeding and breeding. The females cooperate to protect and nurse their young. Females give birth every four to twenty years, and care for the calves for more than a decade. A mature sperm whale has few natural predators, although calves and weakened adults are sometimes killed by pods of orcas killer whales. Sperm whales can live for more than 60 years.
Family: Physeteridae Length: 11 to 18 metres Weight: 15, to 50, kg Lifespan: 50 to 70 years. The Sperm whale Physeter macrocephalus is the largest toothed cetacean. Its head alone accounts for one third of total body length, and its tail can reach up to 4 metres in width. The Sperm whale generally does dives lasting about 30 minutes, but often stays underwater for over an hour. It can reach remarkable depths ranging from 1, to 3, metres.
The inspiration for the white whale of Moby Dick, sperm whales have the largest heads, biggest brains, and make the loudest sound of any animal on Earth. Region: Arctic. Destinations: Lofoten, Greenland, Svalbard, Iceland. Sperm whales usually eat a little over kg almost 2, pounds of food per day.