WebSummary of abundance estimates for the western North Atlantic sperm whale (Physeter macrocephalus). Month, year, and area covered during each abundance survey, and resulting abundance estimate (N. best ... sperm whale life history in other regions, some life history and vital rates information is available for the Northwest Atlantic. These ... The sperm whale or cachalot (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. … See more Etymology The name "sperm whale" is a clipping of "spermaceti whale". Spermaceti, originally mistakenly identified as the whales' semen, is the semi-liquid, waxy substance found within the whale's … See more After the discovery by Valentine Worthington and William Schevill confirmed the existence of whale vocalization further … See more Sperm whales can live 70 years or more. They are a prime example of a species that has been K-selected, meaning their reproductive strategy is associated with stable … See more Fossil record Although the fossil record is poor, several extinct genera have been assigned to the clade See more External appearance The sperm whale is the largest toothed whale and is among the most sexually dimorphic of all cetaceans. Both sexes are about the same size at birth, but mature males are typically 30% to 50% longer and three times as … See more Distribution Sperm whales are among the most cosmopolitan species. They prefer ice-free waters over 1,000 … See more Relations within the species Like elephants, females and their young live in matriarchal groups called pods, while bulls live apart. Bulls sometimes form loose bachelor … See more
Sperm Whale (Physeter macrocephalus) U.S. Fish & Wildlife Service
WebDec 23, 2024 · Although male sperm whales, Physeter macrocephalus, form all-male groups, the factors promoting group formation among males may be quite different from those in … WebThere is only one living species in this genus: the sperm whale (Physeter macrocephalus). Some extremely poorly known fossil species have also been assigned to the same genus … fort huachuca aafes post exchange
Physeteroidea - Wikipedia
WebMar 9, 2024 · Sperm whales belong to the class Mammalia, the order Cetacea, the family Physeteridae, and the genus Physeter. The scientific name for this cetacean is Physeter … WebA non-invasive acoustic method for measuring the growth of sperm whales was developed based on estimating the length of individuals by measuring the inter-pulse interval (IPI) of their clicks. ... Acoustically derived growth rates of sperm whales (Physeter macrocephalus) in Kaikoura, New Zealand J Acoust Soc Am. 2013 Sep;134(3):2438-45. doi: 10 ... WebThe sperm whale Physeter macrocephalus, the largest of the odontocetes or toothed whales, is a deep diver found over almost all deep (>1000 m) ice-free waters of the globe … fort huachuca alaract