Results 161 to 170 of about 6,308 (187)
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Hearing in primitive mammals: Monodelphis domestica and Marmosa elegans
Hearing Research, 1994Although opossums of the Family Didelphidae usually serve as a parsimonious starting point for tracing the otological and neurological evolution of modern mammals, audiological data for Didelphid opossums is available only for the North American opossum (Didelphis virginiana) which because of its large size, may be one of the least representative ...
S B, Frost, R B, Masterton
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Carpal ontogeny in Monodelphis domestica and Caluromys philander (Marsupialia)
Zoology, 2003Carpal bones have experienced numerous changes during marsupial evolution, even though their diversity and development remain poorly studied. The aim of this work was to document adult form and the pattern of mesenchymal tissue condensation and formation of chondrification and ossification centers in the hand of two marsupials.
J A N, Prochel +1 more
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Extreme bilateral molar rotation in monodelphis domestica (marsupialia: didelphidae)
Archives of Oral Biology, 1997Rotation of a tooth around an axis perpendicular to the occlusal plane through angles approaching 180 degrees is a rare anomaly found in the mammalian dentition. A specimen of Monodelphis domestica was found to show such extreme rotation of both lower last molars, with consequent disruption of normal occlusion and wear.
A F, Van Nievelt, K K, Smith
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2015
Published as part of Astúa, D., 2015, Didelphidae, pp. 129-186 in Handbook of the Mammals of the World – Volume 5 Monotremes and Marsupials, Barcelona :Lynx Edicions on pages 151-152, DOI: 10.5281/zenodo ...
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Published as part of Astúa, D., 2015, Didelphidae, pp. 129-186 in Handbook of the Mammals of the World – Volume 5 Monotremes and Marsupials, Barcelona :Lynx Edicions on pages 151-152, DOI: 10.5281/zenodo ...
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Cochlear place-frequency map in the marsupial Monodelphis domestica
Hearing Research, 1993In order to determine the place-frequency map of the cochlea in the marsupial Monodelphis domestica, iontophoretic HRP-injections were made at several locations in the ventral cochlear nucleus. Prior to iontophoresis the auditory neurons at these locations were characterized electrophysiologically.
M, Müller, F P, Wess, V, Bruns
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Gonadal sex differentiation in the neonatal marsupial, Monodelphis domestica
Development, 1990ABSTRACT A quantitative and histological study of the gonads of newborn grey short-tailed opossums, Monodelphis domestica, is described. The pups were karyotyped, and comparisons were made within litters segregating for XX and XY sex chromosomes. A total of four litters including 25 pups were available.
Baker, P.J. +4 more
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Organization and connections of V1 in Monodelphis domestica
The Journal of Comparative Neurology, 2000We examined the internal organization and connections of the primary visual area, V1, in the South American marsupial Monodelphis domestica. Multiunit electrophysiological recording techniques were used to record from neurons at multiple sites. Receptive field location, size, progressions, and reversals were systematically examined to determine the ...
D M, Kahn, K J, Huffman, L, Krubitzer
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Laboratory Opossum (Monodelphis domestica) Model for Melanoma Chemoprevention
Journal of Cancer Science & Therapy, 2012Melanoma is the most aggressive form of skin cancer. Developments in melanoma basic research and therapeutic interventions have advanced tremendously with help of animal models of this disease. Transgenic and knockout mice have provided a wide array of melanoma models, which are primarily used for studying molecular
Hareesh B Nair, John L VandeBerg
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Husbandry of Monodelphis domestica in the study of mammalian embryogenesis
Lab Animal, 2010Monodelphis domestica, commonly called the laboratory opossum, is a useful laboratory animal for studying marsupial embryogenesis and mammalian development. Females breed year-round and the animals can be sustainably bred indoors. The authors draw on their own laboratory's experience to supplement previously published research on laboratory opossums ...
Holly, Rousmaniere +6 more
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Development of spontaneous locomotor behaviors in the opossum, Monodelphis domestica
Behavioural Brain Research, 1996The development of spontaneous locomotor behaviors was studied in the opossum Monodelphis domestica. The newborn opossum performs alternate, rhythmic movements with its forelimbs to crawl on the mother's belly where it attaches to a nipple, and its hindlimbs are little more than embryonic buds. The forelimbs retain the above movements for about 3 weeks,
J F, Pflieger, G, Cassidy, T, Cabana
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