Results 61 to 70 of about 15,793 (217)
Female, juvenile, and calf sperm whale Physeter macrocephalus (Linnaeus 1758) records from Ireland
Ecology and EvolutionSperm whales spatially segregate by sex and social behavior as they mature. In the North Atlantic, male whales move to higher latitudes as far as Svalbard at 80° N, while females and young whales typically remain around lower latitudes below 40–45° N ...
Seán A. O'Callaghan +4 more
doaj +1 more source
Occurrence of sperm whale (Physeter macrocephalus) in the Russian Arctic
Polar Research, 2020 We report two sperm whale (Physeter macrocephalus) strandings observed in the south-east corner of the Barents Sea (i.e., Pechora Sea) in 2018, unusually far from the species’ hitherto known distribution.
Igor Popov, Götz Eichhorn
doaj +1 more source
Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin
The Anatomical Record, Volume 309, Issue 4, Page 853-863, April 2026.Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley +1 more source
Crystallization of Reconstituted Sperm Whale Myoglobins [PDF]
Nature New Biology, 1971 WE wish to report that reconstituted sperm whale myoglobin prepared by the method of Breslow1 (except that pH 2 was found sufficient to remove all the haem) (I) crystallizes2 in a different habit from those prepared by the method of Rossi-Fanelli et al.3 (II) using haemin of Sigma lot 77B-0220 and our own 57Fe photoporphyrin preparation and the native ...
L C, Dickinson, J C, Chien
openaire +2 more sources
The Truth About Soviet Whaling [PDF]
, 2008 I have always condemned (and to do anything more was not within our power or abilities) the illegal and sometimes destructive whaling by the Soviet Union.
Berzin, Alfred A.
core
Enhancing AIS to Improve Whale-Ship Collision Avoidance and Maritime Security [PDF]
, 2009 Whale-ship strikes are of growing worldwide concern due to the steady growth of commercial shipping. Improving the current situation involves the creation of a communication capability allowing whale position information to be estimated and exchanged ...
Fall, Kevin +2 more
core +2 more sources
Marine Mammal Science, Volume 42, Issue 2, April 2026.ABSTRACT The pygmy right whale (Caperea marginata) is one of the least studied mysticete species. To shed light on its geographic and seasonal distribution, we compiled archival acoustic recordings from 26 sites across southern Australia and developed a deep‐learning detector for pygmy right whale “doublet” vocalizations.
Paul Nguyen Hong Duc +11 more
wiley +1 more source
Classification of Sperm Whale Clicks (Physeter Macrocephalus) with Gaussian-Kernel-Based Networks
Algorithms, 2009 With the aim of classifying sperm whales, this report compares two methods that can use Gaussian functions, a radial basis function network, and support vector machines which were trained with two different approaches known as C-SVM and ν-SVM.
Michel André +2 more
doaj +1 more source
Frequent loss and alteration of the MOXD2 gene in catarrhines and whales: a possible connection with the evolution of olfaction. [PDF]
PLoS ONE, 2014 The MOXD2 gene encodes a membrane-bound monooxygenase similar to dopamine-β-hydroxylase, and has been proposed to be associated with olfaction. In this study, we analyzed MOXD2 genes from 64 mammalian species, and identified loss-of-function mutations in
Dong Seon Kim +4 more
doaj +1 more source
Karyotypes and idiograms of sperm and pygmy sperm whales [PDF]
Hereditas, 2009 The somatic chromosomes of the sperm whale, Physeter catodon L. and the pygmy sperm whale, Kogia breviceps Blainville, were studied. The chromosome number of both species is 2n=42. The sperm and pygmy sperm whales are the only cetaceans, so far recorded, with a chromosome number deviating from 2n=44.
U, Arnason, K, Benirschke
openaire +2 more sources