Results 11 to 20 of about 13,122 (267)

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

Movement of Free-Ranging Koalas in Response to Male Vocalisation Playbacks

open access: yesAnimals, 2022
Effective conservation strategies rely on knowledge of seasonal and social drivers of animal behaviour. Koalas are generally solitary and their social arrangement appears to rely on vocal and chemical signalling.
Alex Zijian Jiang   +4 more
doaj   +1 more source

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

Marsupial Gut Microbiome [PDF]

open access: yesFrontiers in Microbiology, 2020
The study of the gut microbiome in threatened wildlife species has enormous potential to improve conservation efforts and gain insights into host-microbe coevolution. Threatened species are often housed in captivity, and during this process undergo considerable changes to their gut microbiome.
Chong, Rowena   +3 more
openaire   +5 more sources

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

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

Diversidad de mamíferos en un remanente de bosque urbano de la ciudad de Medellín (Antioquia, Colombia)

open access: yesActualidades Biológicas, 2020
La gran diversidad de especies en centros urbanos de Colombia contrasta con la rápida e intensa degradación de los hábitats donde se concentra dicha diversidad.
Tomás Villada-Cadavid   +1 more
doaj   +1 more source

Relative demographic susceptibility does not explain the extinction chronology of Sahul’s megafauna

open access: yeseLife, 2021
The causes of Sahul’s megafauna extinctions remain uncertain, although several interacting factors were likely responsible. To examine the relative support for hypotheses regarding plausible ecological mechanisms underlying these extinctions, we ...
Corey JA Bradshaw   +5 more
doaj   +1 more source

Evolutionary transcriptomics implicates HAND2 in the origins of implantation and regulation of gestation length

open access: yeseLife, 2021
The developmental origins and evolutionary histories of cell types, tissues, and organs contribute to the ways in which their dysfunction produces disease.
Mirna Marinić   +3 more
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

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