Results 171 to 180 of about 3,591 (215)
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Recurring patterns in the songs of humpback whales (Megaptera novaeangliae)
Behavioural Processes, 2011Humpback whales, unlike most mammalian species, learn new songs as adults. Populations of singers progressively and collectively change the sounds and patterns within their songs throughout their lives and across generations. In this study, humpback whale songs recorded in Hawaii from 1985 to 1995 were analyzed using self-organizing maps (SOMs) to ...
Sean R, Green +3 more
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Social structure in migrating humpback whales (Megaptera novaeangliae)
Molecular Ecology, 2002AbstractAlthough largely solitary, humpback whales exhibit a number of behaviours where individuals co‐operate with one another, for example during bubble net feeding. Such cases could be due to reciprocal altruism brought on by exceptional circumstances, for example the presence of abundant shoaling fish.
Valsecchi, E. +3 more
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Morphology of the eyeball from the humpback whale (Megaptera novaeangliae)
Microscopy Research and Technique, 2014ABSTRACTAquatic mammals underwent morphological and physiological adaptations due to the transition from terrestrial to aquatic environment. One of the morphological changes regards their vision since cetaceans' eyes are able to withstand mechanical, chemical, osmotic, and optical water conditions.
Fernanda M, Rodrigues +5 more
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Specializations of somatosensory innervation in the skin of humpback whales (Megaptera novaeangliae)
The Anatomical Record, 2022AbstractCetacean behavior and life history imply a role for somatosensory detection of critical signals unique to their marine environment. As the sensory anatomy of cetacean glabrous skin has not been fully explored, skin biopsy samples of the flank skin of humpback whales were prepared for general histological and immunohistochemical (IHC) analyses ...
Sherri A. Eldridge +10 more
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Population Characteristics of DNA Fingerprints in Humpback Whales (Megaptera novaeangliae)
Journal of Heredity, 1993Humpback whales exhibit a remarkable social organization that is characterized by seasonal long-distance migration (> 10,000 km/year) between summer feeding grounds in high latitudes and winter calving and breeding grounds in tropical or near-tropical waters.
Baker, C. S. +7 more
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Bronchopneumonia by Granulicatella balaenopterae in a humpback whale (Megaptera novaeangliae)
Veterinary Research CommunicationsWe report a microbiological and pathological investigation of a juvenile male humpback whale (Megaptera novaeangliae) stranded in Mostardas, Rio Grande do Sul, Brazil. Macroscopically, the lung parenchyma exhibited a diffuse hyperemia, that on histological examination was composed of suppurative bronchopneumonia associated with necrosis of the ...
Anderson Hentz Gris +12 more
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The song of the humpback whale Megaptera novaeangliae in the West Indies
Marine Biology, 1978Songs of the humpback whale Megaptera novaeangliae were recorded and analyzed from Grand Turks in the Bahamas to Venezuela. The design features of the song are as follows. The basic song evolves through a series of different sounds in a fixed order. The song is produced only in the winter tropical calving grounds, just before the whales arrive on the ...
H. E. Winn, L. K. Winn
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Humpback whale (Megaptera novaeangliae) sonar: Ten predictions.
Journal of Comparative Psychology, 2020Bats and dolphins echolocate ultrasonically while foraging, an active mode of perception that is effective for intercepting small, fast-moving targets, but less so for tracking large targets from long distances. Unlike toothed whales, humpback whales and other baleen whales are widely assumed not to echolocate.
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Hormones and Behavior, 2020
For most cetacean species, there is little known about how an individual's physiology influences its behaviour. Humpback whales (Megaptera novaeangliae) are a good candidate to examine such links as they have a well-described distribution and behaviour, can be consistently sampled using remote biopsy systems, and have been the subject of several ...
Mingramm, F. M.J. +3 more
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For most cetacean species, there is little known about how an individual's physiology influences its behaviour. Humpback whales (Megaptera novaeangliae) are a good candidate to examine such links as they have a well-described distribution and behaviour, can be consistently sampled using remote biopsy systems, and have been the subject of several ...
Mingramm, F. M.J. +3 more
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The effect of depth on the target strength of a humpback whale (Megaptera novaeangliae)
The Journal of the Acoustical Society of America, 2013Marine mammals are very seldom detected and tracked acoustically at different depths. The air contained in body cavities, such as lungs or swimbladders, has a significant effect on the acoustic energy backscattered from whale and fish species. Target strength data were obtained while a humpback whale (Megaptera novaeangliae) swam at the surface and ...
M, Bernasconi +4 more
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