Results 181 to 190 of about 5,581 (218)

The arterial system of the sperm whale (Physeter macrocephalus)

Journal of Morphology, 1997
The angioarchitecture of the sperm whale is basically similar to that of other mammals, but it has specific attributes associated with the aquatic environment of this animal and its tolerance for deep and long diving. Specialized features include an expansive aortic arch, unusually far anterior localization of the arch, symmetrical branching of common ...
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Edwardsiella tarda sepsis in a live-stranded sperm whale (Physeter macrocephalus)

Veterinary Microbiology, 2013
Whale strandings remain poorly understood, although bacterial infections have been suggested to contribute. We isolated Edwardsiella tarda from the blood of a stranded sperm whale. The pathogen was identified with MALDI-TOF MS, confirmed by 16S rRNA gene sequencing and quantified in blood by qPCR.
Piet, Cools, Jan, Haelters, Guido, Lopes dos Santos Santiago, Geert, Claeys, Jerina, Boelens, Isabel, Leroux-Roels, Mario, Vaneechoutte, Pieter, Deschaght   +7 more
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Click production during breathing in a sperm whale (Physeter macrocephalus)

The Journal of the Acoustical Society of America, 2005
A sperm whale (Physeter macrocephalus) was observed at the surface with above- and underwater video and synchronized underwater sound recordings. During seven instances the whale ventilated its lungs while clicking. From this observation it is inferred that click production is achieved by pressurizing air in the right nasal passage, pneumatically ...
Wahlberg, Magnus, Frantzis, A., Alexiadou, P., Madsen, P.T., Møhl, B.   +4 more
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Can Genetic Differences Explain Vocal Dialect Variation in Sperm Whales, Physeter macrocephalus?

Behavior Genetics, 2011
Sperm whale social groups can be assigned to vocal clans based on their production of codas, short stereotyped patterns of clicks. It is currently unclear whether genetic variation could account for these behavioural differences. We studied mitochondrial DNA (mtDNA) variation among sympatric vocal clans in the Pacific Ocean, using sequences extracted ...
Luke, Rendell, Sarah L, Mesnick, Merel L, Dalebout, Jessica, Burtenshaw, Hal, Whitehead   +4 more
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Social Affiliations within Sperm Whale (Physeter macrocephalus) Groups

Ethology, 2001
We examined patterns of affiliation within groups of sperm whales (Physeter macrocephalus), particularly concentrating on how short‐term spatio–temporal associations reflect long‐term relationships. Female and immature sperm whales live in stable, and partially matrilineal, social units. Two or more social units may move together for periods of several
Jenny Christal, Hal Whitehead
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Social Organization in Sperm Whales, Physeter macrocephalus

1979
The cows with their young give from nothing up to 35 barrels, and seem to go in schools together, and we frequently see from twenty-five to fifty and sometimes one hundred or more in a school, with occasionally a large bull among them, and at times, though seldom, we find all sizes together.
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Sperm whales (Physeter macrocephalus) in Scapa Flow, Orkney

1999
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Physeter macrocephalus Linnaeus, 1758, spec. nov.

Physeter macrocephalus [spec. nov.] P. dorso impenni, fistula in cervice. Catodon fistula in cervice. Art. gen. 78. syn. 108. Faun. svec. 262. Syst. nat. 39. n. 2. Cete. Clus. exot. 131. Cete Clusio descriptum. Will. icht. 41. Balaena major in inferiore tantum maxilla dentata macrocephala bipinnis. Raj. pisc. 15: 11.
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Genetic analysis of the sperm whale (Physeter macrocephalus) using microsatellites.

2017
The sperm whale is the largest of the toothed whales (Odontoceti), and inhabits deep waters from equatorial to Polar Regions. Sperm whales are social and commonly l r . found in small groups. However, sociality varies according to sex and age. Immature males form bachelor groups that disperse as they mature, mature males are frequently encountered ...
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