Search results
Results From The WOW.Com Content Network
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). The two kogiid species are much smaller, around 2.5 to 3.5 m (8 ft 2 in to 11 ft 6 in) in length, and weighing ...
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.
In contrast, the modern sperm whale (Physeter macrocephalus) lacks enamel, teeth in the upper jaw, and the ability to use its teeth to catch prey. [13] However, Livyatan belongs to a different lineage than the other macroraptorials, and the development of large size and the spermaceti organ , an organ that is characteristic of sperm whales, are ...
Physeter is a genus of toothed whales.There is only one living species in this genus: the sperm whale (Physeter macrocephalus). [2] Some extremely poorly known fossil species have also been assigned to the same genus including Physeter antiquus (5.3–2.6 mya) from the Pliocene of France, [3] and Physeter vetus (2.6 mya – 12 ka) from the Quaternary of the U.S. state of Georgia. [4]
Grand Cachalot (Physeter macrocephalus), mom et juvenile. The Great Sperm Whale (Physeter macrocephalus) is the largest of the odontocetes, measuring up to eighteen meters in length and weighing forty tons (considerably less for females). [38]
In the modern sperm whale (Physeter macrocephalus), this organ is far larger in proportion to the animal's body than what would be explained by simple allometry.Its evolution has caused changes in basal skull morphology, which may implicate that a trade-off was made that compromised the functionality of other features.
Hal Whitehead is a biologist specializing in the study of the sperm whale (Physeter macrocephalus).Whitehead is professor at Dalhousie University.The primary field research vessel of his laboratory is the Balaena, a Valiant 40 ocean-going cruising boat, which normally does its work off the coast of Nova Scotia.
The genus name Zygophyseter comes from the Latin word zygomaticus, which emphasizes the elongation of the zygomatic process of the only known species Z. varolai, and the term physeter refers to the modern-day sperm whale (Physeter macrocephalus) of the family Physeteridae. The species name honors the discoverer. [1]