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The sperm whale or cachalot [a] (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator.It is the only living member of the 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.
A sperm whale may contain as much as 1,900 L (420 imp gal; 500 US gal) of this oil. [ 3 ] The morphology of the nasal complex is believed to be homologous in all of the echolocating Odontoceti (toothed whales), with the spermaceti organ homologous to the dorsal bursa in the dolphin . [ 4 ]
Spermaceti is taken from the spermaceti organ (yellow) and junk (orange) within the sperm whale's head. Raw spermaceti is liquid within the head of the sperm whale, and is said to have a smell similar to raw milk. [8] It is composed mostly of wax esters (chiefly cetyl palmitate) and a smaller proportion of triglycerides. [9]
Scientists studying the sperm whales that live around the Caribbean island of Dominica have described for the first time the basic elements of how they might be talking to each other, in an effort ...
The term "Great Whales" covers those currently regulated by the International Whaling Commission: [8] the Odontoceti family Physeteridae (sperm whales); and the Mysticeti families Balaenidae (right and bowhead whales), Eschrichtiidae (grey whales), and some of the Balaenopteridae (Minke, Bryde's, Sei, Blue and Fin; not Eden's and Omura's whales).
And sperm whales function as a family, "Sperm whales are often spotted in groups (called pods) of some 15 to 20 animals. Pods include females and their young, while males may roam solo or move ...
Sperm whale and bottlenose whale. The sperm whale (Physeter macrocephalus) is the largest species of toothed whale, with adult bulls (males) growing to be about 15–18 m (49–59 ft) long, and weighing about 45–70 metric tons (44–69 long tons; 50–77 short tons).
For the new study, the researchers used machine learning to detect patterns in audio data collected by The Dominica Sperm Whale Project, a repository for observations of sperm whales that inhabit ...