Results 11 to 20 of about 6,596 (161)

The common black-eared opossum in the symbolic and iconographic universe. From the effigy ornaments in the lesser Antilles to the European graphics of Simivulpa and its variants in the 16th – 17th centuries

open access: yesCiencia y Sociedad, 2023
This study focuses on the aesthetic analysis, iconographic variants, and symbolism of the common black-eared opossum (Didelphis marsupialis Linnaeus 1758) in ceramic ornaments of agro-ceramic origin of the Saladoid tradition with Barrancoid influence ...
Alfredo Bueno Jiménez
doaj   +1 more source

Trichromacy in Australian Marsupials [PDF]

open access: yesCurrent Biology, 2002
Vertebrate color vision is best developed in fish, reptiles, and birds with four distinct cone receptor visual pigments. These pigments, providing sensitivity from ultraviolet to infrared light, are thought to have been present in ancestral vertebrates.
Arrese, Catherine A.   +4 more
openaire   +5 more sources

The evolutionary process of mammalian sex determination genes focusing on marsupial SRYs

open access: yesBMC Evolutionary Biology, 2018
Background Maleness in mammals is genetically determined by the Y chromosome. On the Y chromosome SRY is known as the mammalian male-determining gene. Both placental mammals (Eutheria) and marsupial mammals (Metatheria) have SRY genes.
Yukako Katsura   +4 more
doaj   +1 more source

The lumbosacral plexus in two Didelphis species (Didelphidae, Didelphimorphia): origin and nerve distribution [PDF]

open access: yesBrazilian Journal of Biology, 2023
Morphological studies provide knowledge that allow us to understand how animals interact with the natural environment or the captivity. The goal of this study was to describe the origin and antimeric distribution of lumbosacral plexus nerves in Didelphis
T. M. Estruc   +5 more
doaj   +1 more source

Tracking marsupial evolution using archaic genomic retroposon insertions.

open access: yesPLoS Biology, 2010
The Australasian and South American marsupial mammals, such as kangaroos and opossums, are the closest living relatives to placental mammals, having shared a common ancestor around 130 million years ago.
Maria A Nilsson   +6 more
doaj   +1 more source

Is Toxoplasma gondii a threat to the conservation of free-ranging Australian marsupial populations?

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2016
It has often been asserted that Australian marsupial species are particularly susceptible to Toxoplasma gondii infection and to clinical toxoplasmosis following infection. This implicates T. gondii as a potential threat to marsupial population viability,
Alison E. Hillman   +2 more
doaj   +1 more source

A Marsupial Oncovirus?

open access: yesJournal of General Virology, 1979
A virus-like particle was observed in two continuous cell lines derived from the marsupial Sminthopsis crassicaudata (Fat-tailed Dunnart). The development of the particle was similar to the development of D-type oncoviruses. Initially, a crescentof nucleoid material was observed near the nucleus in the region of the Golgi apparatus.
R C, Hamilton, A, MacGregor, D, Pye
openaire   +2 more sources

Giardia and Cryptosporidium in Neo-Tropical Rodents and Marsupials: Is There Any Zoonotic Potential?

open access: yesLife, 2021
Cryptosporidiosis and giardiasis have been identified as emerging diseases in both developed and developing countries. Wildlife has been highlighted to play a major role in the spread of these diseases to humans.
Kegan Romelle Jones, Laura Tardieu
doaj   +1 more source

Aspects of the breeding biology of Janaira gracilis Moreira e Pires (Crustacea, Isopoda, Asellota)

open access: yesBrazilian Journal of Oceanography, 1977
The biological aspects of incubating females of Janaira gracilis Mbreira & Pires, are described. The marsupium is formed by 4 pairs of oostegites arising from pereopods I-IV.
Plínio Soares Moreira   +1 more
doaj   +1 more source

Light and Scanning Electron Microscopy of Red Blood Cells From Humans and Animal Species Providing Insights into Molecular Cell Biology

open access: yesFrontiers in Physiology, 2022
We reviewed the many discoveries in cell biology, made since the 17th century, which have been based on red blood cells (RBCs). The advances in molecular and structural biology in the past 40 years have enabled the discovery with these cells, most ...
Gheorghe Benga, Gheorghe Benga, Guy Cox
doaj   +1 more source

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