Results 31 to 40 of about 629 (177)
Audiograms and click spectra of seven novel and seldom-tested odontocetes
Frontiers in Marine Science, 2022 The use of auditory evoked potentials has been promoted as a means by which to collect audiometric information from odontocete cetaceans that are rarely encountered in stranding situations.
Dorian S. Houser +4 more
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Science Progress, 2022 Cetaceans inhabit oceans throughout the world. Four specific odontocetes, namely Cuvier's beaked whale ( Ziphius cavirostris ), Indo Pacific finless porpoise ( Neophocaena phocaenoides ), pygmy sperm whale ( Kogia breviceps ), and dwarf sperm whale ...
Promporn Piboon +9 more
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Variation in whale (Cetacea) inner ear anatomy reveals the early evolution of "specialized" high-frequency hearing sensitivity. [PDF]
J AnatOur findings support sensitivity to low‐frequency sound in the archaeocete Zygorhiza kochii and an early toothed mysticete cf. Aetiocetus. Narrow‐band high‐frequency hearing was present in Oligocene odontocetes and stem delphinidans, suggesting it evolved earlier than expected and could represent an ancestral trait rather than a recent innovation ...
Racicot RA +5 more
europepmc +2 more sources
Memorias do Instituto Oswaldo Cruz, 1998 An adult male pygmy sperm whale, Kogia breviceps (De Blainvillei, 1838) (Physeteridae), 2.73 m long was found stranded on Cacimba do Padre beach, Fernando de Noronha archipelago (3 degrees 51'S; 32 degrees 25'W), Brazil on 2 May 1987.
Cláudia Portes Santos, Liliane Lodi
doaj +2 more sources
Frontiers in Marine Science, 2019 Pygmy sperm whales (Kogia breviceps) and dwarf sperm whales (Kogia sima) are deep diving cetaceans that commonly strand along the coast of the southeast US, but that are difficult to study visually at sea because of their elusive behavior.
John A. Hildebrand +7 more
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Pigmy Sperm Whale (Kogia breviceps) in Borneo [PDF]
Nature, 1958 IN recent years the Sarawak Museum has developed a system by which people along the west coast of Borneo report (if they have time) the occurrence of any beached cetacean. Partly by this means, and with the help of Malays and Dayaks, we have extended the local list from five to fourteen known forms in the past five years, advised and criticized by Dr ...
TOM HARRISSON, GEORGE JAMUH
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Struvite Penile Urethrolithiasis in a Pygmy Sperm Whale (Kogia breviceps) [PDF]
Journal of Wildlife Diseases, 2004 Massive urolithiasis of the penile urethra was observed in an adult pygmy sperm whale (Kogia breviceps) stranded on Topsail Island, North Carolina, USA. Calculi occupied the urethra from just distal to the sigmoid flexure to the tip of the penis for a length of 43 cm. A urethral diverticulum was present proximal to the calculi. The major portion of the
Craig A, Harms +3 more
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Convergent evolution in toothed whale cochleae
BMC Evolutionary Biology, 2019 Background Odontocetes (toothed whales) are the most species-rich marine mammal lineage. The catalyst for their evolutionary success is echolocation - a form of biological sonar that uses high-frequency sound, produced in the forehead and ultimately ...
Travis Park +4 more
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PLoS ONE, 2015 Kogiids are known by two living species, the pygmy and dwarf sperm whale (Kogia breviceps and K. sima). Both are relatively rare, and as their names suggest, they are closely related to the sperm whale, all being characterized by the presence of a ...
Jorge Velez-Juarbe +3 more
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, 2005 Published as part of Wilson, Don E. & Reeder, DeeAnn, 2005, Order Cetacea, pp. 723-743 in Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1, Baltimore :The Johns Hopkins University Press on page 737, DOI: 10.5281/zenodo ...
Wilson, Don E., Reeder, DeeAnn
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