Results 201 to 210 of about 25,335 (235)
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Chromosomes of the Sperm Whale
Nature, 1965THIS report describes the results of a chromosomal analysis of the sperm whale by the method of leucocyte tissue culture. During July and August, 1964, fresh sterile blood was obtained at sea for various research purposes from sperm, finback, and sei whales (Physeter catodon, Balaenoptera physalus and B.
Roger P. Atwood, Lawrence Razavi
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The Journal of the Acoustical Society of America, 1977
Short series of 3 to 40 or more clicks are produced by sperm whales, Physeter catodon, in stereotyped repetitive sequences or codas. The temporal click patterns in codas appear to be unique to individual whales over at least a few hours. It is suggested that sperm whale codas serve as a means of individual acoustic identification.
William E. Schevill, William A. Watkins
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Short series of 3 to 40 or more clicks are produced by sperm whales, Physeter catodon, in stereotyped repetitive sequences or codas. The temporal click patterns in codas appear to be unique to individual whales over at least a few hours. It is suggested that sperm whale codas serve as a means of individual acoustic identification.
William E. Schevill, William A. Watkins
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Ontogenesis of the sperm whale brain
The Journal of Comparative Neurology, 1998The development of the sperm whale brain (Physeter macrocephalus) was investigated in 12 embryos and early fetuses to obtain a better understanding of the morphological and physiological adaptations in this most exotic cetacean concerning locomotion, deep diving, and orientation.
Birgit Kemp, Helmut H.A. Oelschläger
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The monopulsed nature of sperm whale clicks
The Journal of the Acoustical Society of America, 2003Traditionally, sperm whale clicks have been described as multipulsed, long duration, nondirectional signals of moderate intensity and with a spectrum peaking below 10 kHz. Such properties are counterindicative of a sonar function, and quite different from the properties of dolphin sonar clicks.
Møhl, Bertel +4 more
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Nature, 1978
The International Whaling Commission (IWC) is holding a special meeting in Japan next week. Two major tasks for the meeting will be to set catch limits for sperm whale stocks in the North Pacific and to review the status and catch limits of sperm whales in the Southern Hemisphere.
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The International Whaling Commission (IWC) is holding a special meeting in Japan next week. Two major tasks for the meeting will be to set catch limits for sperm whale stocks in the North Pacific and to review the status and catch limits of sperm whales in the Southern Hemisphere.
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GENITAL PAPILLOMATOSIS IN SPERM WHALE BULLS
Journal of Wildlife Diseases, 1987Examination of 31 male sperm whales (Physeter catodon) caught off the western coast of Iceland revealed three cases of genital papillomatosis involving the unsheathed penis. One subadult and two sexually mature bulls were affected. Gross lesions resembled papillomas common in terrestrial mammalian species.
Lambertsen, R H +3 more
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Bioacoustics, 2005
ABSTRACT Sperm whale Physeter macrocephalus L. clicks have been studied for nearly fifty years, during which time great efforts have been made to understand the functions and production mechanisms of this sound. Other than clicks, sperm whales may also produce low intensity sounds arranged in short sequences, named trumpets, which have been recorded ...
V. Teloni +2 more
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ABSTRACT Sperm whale Physeter macrocephalus L. clicks have been studied for nearly fifty years, during which time great efforts have been made to understand the functions and production mechanisms of this sound. Other than clicks, sperm whales may also produce low intensity sounds arranged in short sequences, named trumpets, which have been recorded ...
V. Teloni +2 more
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2019
During the night of 13 to 14 March, the Nautilus continued on its route southwards. I thought that once at Cape Horn it would set sail for the west, in order to head for the seas of the Pacific and thus complete...
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During the night of 13 to 14 March, the Nautilus continued on its route southwards. I thought that once at Cape Horn it would set sail for the west, in order to head for the seas of the Pacific and thus complete...
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Aerial behaviour in sperm whales
Canadian Journal of Zoology, 1990This paper examines the nature and context of breaching (leaping from the water) and lobtailing (thrashing of flukes onto the water surface) in sperm whales (Physeter macrocephalus) using data principally collected off the Galápagos Islands. Animals generally breached on their sides at an angle of 30–50° to the water surface and with about 50–100% of ...
Susan Waters, Hal Whitehead
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Self-association of sperm whale metmyoglobin
Archives of Biochemistry and Biophysics, 1984The solution behavior of sperm whale metmyoglobin in 0.15 I phosphate-chloride buffer, pH 7.2, has been examined by sedimentation equilibrium, frontal gel chromatography, and sedimentation velocity. Results obtained from all three studies are shown to be consistent with a self-association model in which dimerization of the myoglobin is governed by an ...
Ward L.D., Winzor D.J.
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