Results 21 to 30 of about 1,454,960 (384)

Age‐associated variation in the gut microbiota of chinstrap penguins (Pygoscelis antarctica) reveals differences in food metabolism

open access: yesMicrobiologyOpen, 2021
Age is known to affect the gut microbiota in various animals; however, this relationship is poorly understood in seabirds. We investigated the temporal succession of gut microbiota in captive chinstrap penguins of different ages using high‐throughput ...
Jiashen Tian   +6 more
doaj   +1 more source

Hunting by the Stroke: How Foraging Drives Diving Behavior and Locomotion of East-Greenland Narwhals (Monodon monoceros)

open access: yesFrontiers in Marine Science, 2021
Deep diving air-breathing species by necessity must balance submergence time and level of exercise during breath-holding: a low activity level preserves oxygen stores and allows longer duration submergence whereas high activity levels consume oxygen ...
Outi M. Tervo   +6 more
doaj   +1 more source

Asian gliriform origin for arctostylopid mammals [PDF]

open access: yes, 2006
A
A Sulimski   +28 more
core   +2 more sources

The Mammals of Angola [PDF]

open access: yes, 2019
Scientific investigations on the mammals of Angola started over 150 years ago, but information remains scarce and scattered, with only one recent published account. Here we provide a synthesis of the mammals of Angola based on a thorough survey of primary and grey literature, as well as recent unpublished records.
Pedro Beja   +9 more
openaire   +2 more sources

Application of Felid Hair for Non-Invasive Tracking of Animal Reproductive Status and Adrenal Activity

open access: yesAnimals, 2022
Hair can be a useful matrix to examine the hormonal status of an animal, although it is difficult to correlate the results to a specific time point. The aim of this study was to evaluate seasonal changes in cortisol and testosterone levels in the hair of
Sergey V. Naidenko   +3 more
doaj   +1 more source

Therapy of cancer by insect cells containing recombinant baculovirus encoding genes [PDF]

open access: yes, 2002
Provided are compositions and methods of use for insect cells comprising baculovirus encoding non-surface expressed proteins and peptides. The claimed invention particularly relates to compositions comprising insect cells containing baculovirus that ...
Dhong, Zhongyun   +2 more
core   +1 more source

Distribution of microbiota across different intestinal tract segments of a stranded dwarf minke whale, Balaenoptera acutorostrata

open access: yesMicrobiologyOpen, 2020
Marine mammals are an important part of ocean ecosystems, of which, whales play a vital role in the marine food chain. In this study, the mucosa and contents from different intestinal tract segments (ITSs) of a stranded dwarf minke whale (Balaenoptera ...
Jiashen Tian   +7 more
doaj   +1 more source

Health Status and Stress in Different Categories of Racing Pigeons

open access: yesAnimals, 2021
The influence of different stress parameters in racing pigeon flocks, such as the presence of diseases and environmental conditions at the time of the races, were described.
Marjan Kastelic   +12 more
doaj   +1 more source

Retrotransposon silencing by DNA methylation can drive mammalian genomic imprinting [PDF]

open access: yes, 2015
Among mammals, only eutherians and marsupials are viviparous and have genomic imprinting that leads to parent-of-origin-specific differential gene expression. We used comparative analysis to investigate the origin of genomic imprinting in mammals. PEG10 (
Alsop, Amber   +12 more
core   +1 more source

MHC-linked and un-linked class I genes in the wallaby [PDF]

open access: yes, 2009
Background: MHC class I antigens are encoded by a rapidly evolving gene family comprising classical and non-classical genes that are found in all vertebrates and involved in diverse immune functions.
Beck, S.   +8 more
core   +4 more sources

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