Results 1 to 10 of about 26,897 (235)
Meiotic dynamics in a unique Australian marsupial provide new insights into the evolution of neo-sex chromosomes in the early stages of differentiation [PDF]
Frontiers in Cell and Developmental BiologyUnderstanding the origin and fate of sex chromosomes has been one of the most intriguing questions in biology. In therian (marsupial and eutherian) mammals, most species are characterized by a heteromorphic XX female XY male sex chromosome system.
Laia Marín-Gual +8 more
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Nature Communications, 2023 The relatively high level of morphological diversity in Australasian marsupials compared to that observed among American marsupials remains poorly understood.
Laura A. B. Wilson +6 more
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Frontiers in Ecology and Evolution, 2022 The Cerrado biome is one of the global hotspots of biodiversity, and non-volant small mammals represent a significant portion of Cerrado species richness (45%) and endemism (86%).
Ana Paula Carmignotto +2 more
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Litter size and reproductive condition of small mammals in southern Goiás, Brazil
Mammalogy Notes, 2021 Litter size and reproductive conditions are important in natural history. However, this information is scarce in scientific literature. Here, we presented litter size data for eight small mammal species (four marsupials and four rodents) and investigated
Hermes Willyan Parreira Claro +1 more
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Use of Tie-in Fixation and Modified Poliglecaprone-25 Suture Cerclages in a Complex Femoral Diaphysis Fracture in a Black-Eared Opossum (Didelphis aurita): Case Report [PDF]
Iranian Journal of Veterinary Surgery, 2022 A juvenile opossum was found after an episode of trauma caused by a vehicular collision. In the emergency care, vital parameters and changes related to the trauma were measured, and it was not possible to verify any changes, other than a crepitation in ...
Delcio Magalhães +2 more
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Cranial anatomy of the earliest marsupials and the origin of opossums. [PDF]
PLoS ONE, 2009 BackgroundThe early evolution of living marsupials is poorly understood in part because the early offshoots of this group are known almost exclusively from jaws and teeth.
Inés Horovitz +5 more
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Mechanisms of Choice in X-Chromosome Inactivation
Cells, 2022 Early in development, placental and marsupial mammals harbouring at least two X chromosomes per nucleus are faced with a choice that affects the rest of their lives: which of those X chromosomes to transcriptionally inactivate.
Giulia Furlan, Rafael Galupa
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Parasites & Vectors, 2021 Background Toxoplasma gondii infections are common in humans and animals worldwide. Among all intermediate hosts of T. gondii, captive marsupials from Australia and New Zealand are highly susceptible to clinical toxoplasmosis.
Jitender P. Dubey +5 more
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Morphological study of larynx, trachea, and lungs of Didelphis marsupialis (LINNAEUS, 1758) [PDF]
Veterinary World, 2020 Background and Aim: From a biomedical point of view, the value of marsupials as a model of primitive mammals is indisputable. Among its species, the possum is a model that allows the study of the ontogeny of different organic systems, as well as their ...
Bruna Tassia Santos Pantoja +13 more
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Frontiers in Ecology and Evolution, 2021 Native mammals are suffering widespread and ongoing population declines across northern Australia. These declines are likely driven by multiple, interacting factors including altered fire regimes, predation by feral cats, and grazing by feral herbivores.
Cara E. Penton +5 more
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