Results 171 to 180 of about 4,725 (205)

DISSEMINATED BLASTOMYCOSIS IN TWO CALIFORNIA SEA LIONS (ZALOPHUS CALIFORNIANUS)

Journal of Zoo and Wildlife Medicine, 2000
Two captive California sea lions (Zalophus californianus) from different facilities were diagnosed with disseminated blastomycosis. The first, a 12-yr-old male, died after a 3-wk history of progressive anorexia and lethargy. Gross examination revealed acute jejunitis with focal perforation and associated peritonitis, along with severe purulent ...
L S, Zwick, M B, Briggs, S S, Tunev, C A, Lichtensteiger, R D, Murnane   +4 more
openaire   +2 more sources

Color vision in the California sea lion (Zalophus californianus)

Vision Research, 1992
Three California sea lions were trained to discriminate between a colored stimulus and two shades of gray in a 3-fold simultaneous choice situation. The colors blue, green and red were tested against shades of gray varying from low to high relative brightness. All animals distinguished blue from gray; two animals also distinguished green from gray; but
U, Griebel, A, Schmid
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Zalophus californianus (California sea lion)

1975
Skin biopsies of the male come from the San Diego Zoo, and that of the female, from the Lincoln Park Zoo, Chicago, Illinois, USA. A male karyotype with identical findings was made available by Drs. R. L. Snyder and D. A. Hungerford as well. The female karyotype is prepared with G-banding and displays bands in the X essentially similar to most mammals.
T. C. Hsu, Kurt Benirschke
openaire   +1 more source

Dental Pathology of the California Sea Lion (Zalophus californianus)

Journal of Comparative Pathology, 2014
Skulls from 1,085 California sea lions (Zalophus californianus) were examined macroscopically according to defined criteria. The museum specimens, 61.8% male and 37.3% female, were acquired from strandings and varied in age from juvenile to adult. The majority of teeth were available for examination (95.7%); 3.8% of teeth were artefactually absent, 0.4%
N L, Sinai, R H, Dadaian, P H, Kass, F J M, Verstraete   +3 more
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Immobilisation of free-ranging Galapagos sea lions (Zalophus californianus wollebaeki)

Veterinary Record, 1979
Nine free-ranging Galápagos sea lions were immobilised for marking, using a combination of ketamine (3 to 5 mg per kg) and xylazine (0.5 to 1.0 mg per kg). The degree of effect depended largely on the animals' behavioural and physiological state before immobilisation (after parturition, high arousal, subject to aggression, etc.) All nine animals ...
Trillmich, Fritz, Wiesner, H
openaire   +3 more sources

Cross-modal transitivity in a California sea lion (Zalophus californianus)

Animal Cognition, 2013
The ability of an experimentally experienced female California sea lion to form transitive relations across sensory modalities was tested using a matching-to-sample procedure. The subject was trained by trial-and-error, using differential reinforcement, to relate an acoustic sample stimulus to one member from each of two previously established visual ...
Kristy L, Lindemann-Biolsi, Colleen, Reichmuth   +1 more
openaire   +2 more sources

Hydrodynamic trail following in a California sea lion (Zalophus californianus)

Journal of Comparative Physiology A, 2010
The mystacial vibrissae of pinnipeds constitute a sensory system for active touch and detection of hydrodynamic events. Harbour seals (Phoca vitulina) and California sea lions (Zalophus californianus) can both detect hydrodynamic stimuli caused by a small sphere vibrating in the water (hydrodynamic dipole stimuli). Hydrodynamic trail following has only
Nele, Gläser, Sven, Wieskotten, Christian, Otter, Guido, Dehnhardt, Wolf, Hanke   +4 more
openaire   +2 more sources

Mental Rotation in A California Sea Lion (Zalophus Californianus)

Journal of Experimental Biology, 1997
ABSTRACT Mental rotation is a widely accepted concept that suggests an analogue mode of visual information-processing in certain visuospatial tasks. Typically, these tasks demand the discrimination between the image and mirror-image of rotated figures, for which human subjects need an increasing reaction time depending on the angular ...
B, Mauck, G, Dehnhardt
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METASTATIC ADENOCARCINOMA IN TWO CALIFORNIA SEA LIONS, Zalophus c. californianus

Journal of Wildlife Diseases, 1980
Two California sea lions (Zalophus californianus californianus) came to necropsy with morphologically identical metastatic tumors. These were glandular epithelial origin and were widespread throughout the visceral organs. Both animals were found beached and dead within two months and were only 220 km apart.
R J, Brown, A W, Smith, G V, Morejohn, R L, DeLong   +3 more
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SUCCESSFULLY TREATED DERMATOMYCOSIS IN CALIFORNIA SEA LIONS(ZALOPHUS CALIFORNIANUS)

Journal of Zoo and Wildlife Medicine, 2013
We describe clinical cases caused by Microsporum gypseum in two subadult male California sea lions (Zalophus californianus). Dermatomycosis is uncommonly reported in pinnipeds, including this species. In these cases, skin lesions were multifocal to coalescing, involved all flippers, and were most pronounced on the ventral surfaces of flippers.
Endre, Sós, Viktor, Molnár, Zoltán, Lajos, Viktória, Koroknai, János, Gál   +4 more
openaire   +2 more sources