Results 11 to 20 of about 13,705 (251)

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.
Jürgen Schmitz   +2 more
exaly   +3 more sources

Australia's Oldest Marsupial Fossils and their Biogeographical Implications

open access: yesPLoS ONE, 2008
BackgroundWe describe new cranial and post-cranial marsupial fossils from the early Eocene Tingamarra Local Fauna in Australia and refer them to Djarthia murgonensis, which was previously known only from fragmentary dental remains.Methodology/principal ...
Mike Archer   +2 more
exaly   +3 more sources

Anaerobic gut fungal communities in marsupial hosts

open access: yesmBio
The anaerobic gut fungi (AGF) inhabit the alimentary tracts of herbivores. In contrast to placental mammals, information regarding the identity, diversity, and community structure of AGF in marsupials is extremely sparse.
Adrienne L. Jones   +6 more
doaj   +2 more sources

Comparative Analysis of Progesterone Secretion and Plasma Proteome Across the Pregnant and Non-Pregnant Luteal Phase of the Koala (Phascolarctos cinereus) [PDF]

open access: yesProteomes
Background: Koalas are a vulnerable marsupial species with unique reproductive traits. Efforts to develop assisted breeding technologies have been hindered by a limited understanding of maternal recognition of pregnancy and physiological changes induced ...
Brooke E. Hartley   +6 more
doaj   +2 more sources

Marsupial Ig genomics revisited and the potential role of retroelements in the limited number of heavy chain isotypes [PDF]

open access: yesBMC Biology
Background Marsupials have limited germline antibody heavy chain variable (VH) gene diversity and more complex light chain variable gene diversity. They also appear to have a limited repertoire of immunoglobulin heavy chain (IgH) isotypes.
Jordan M. Sampson   +3 more
doaj   +2 more sources

First record of Ixodes luciae (Acari: Ixodidae) parasitizing Marmosops noctivagus (Didelphimorphia: Didelphidae) in South America [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária
This study reports the first record of parasitism of Ixodes luciae Sénevet, on the marsupial Marmosops noctivagus (Tschudi), in Brazil and in South America. The tick I.
Marcelo Cutrim Moreira de Castro   +4 more
doaj   +2 more sources

Marsupial and monotreme milk—a review of its nutrient and immune properties [PDF]

open access: yesPeerJ, 2020
All mammals are characterized by the ability of females to produce milk. Marsupial (metatherian) and monotreme (prototherian) young are born in a highly altricial state and rely on their mother’s milk for the first part of their life.
Hayley J. Stannard   +2 more
doaj   +2 more sources

Evolution of the patella and patelloid in marsupial mammals [PDF]

open access: yesPeerJ, 2020
The musculoskeletal system of marsupial mammals has numerous unusual features beyond the pouch and epipubic bones. One example is the widespread absence or reduction (to a fibrous “patelloid”) of the patella (“kneecap”) sesamoid bone, but prior studies ...
Alice L. Denyer   +2 more
doaj   +2 more sources

Glironia venusta (Thomas, 1912) (Didelphidae) reaches the Atlantic! New records in French Guiana, with notes on behaviour [PDF]

open access: yesCheck List, 2023
We report observations of Glironia venusta Thomas, 1912, Bushy-tailed Opossum, from coastal French Guiana, expanding the distribution of this species 300 km north of its previously known range.
Paul Alexandre, Benoit de Thoisy
doaj   +3 more sources

Adaptive Immunity in Marsupials. [PDF]

open access: yesJ Exp Zool A Ecol Integr Physiol
Comparison of the marsupial and eutherian adaptive immune systems. ABSTRACT Marsupials diverged from eutherian mammals 125–160 million years ago. Although evolutionarily distinct, both groups of mammals can produce complex adaptive immune responses to antigens with several key differences.
Jol CL, Stannard HJ, Old JM.
europepmc   +2 more sources

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