Results 31 to 40 of about 2,822 (206)

Serum testosterone concentrations, testicular biometry, and testicular tone in wild male lowland tapirs (Tapirus terrestris) in the Pantanal and Cerrado biomes, Brazil

open access: yesTheriogenology Wild, 2022
: This study aimed to contribute to the knowledge about the reproductive physiology of wild lowland tapirs (Tapirus terrestris) by describing the serum testosterone concentrations, testicular biometry, and testicular tone of individuals living in the ...
Andreza V. Brasil   +3 more
doaj   +1 more source

Natural killer cell receptor genes in the family Equidae: not only Ly49. [PDF]

open access: yesPLoS ONE, 2013
Natural killer (NK) cells have important functions in immunity. NK recognition in mammals can be mediated through killer cell immunoglobulin-like receptors (KIR) and/or killer cell lectin-like Ly49 receptors.
Jan Futas, Petr Horin
doaj   +1 more source

Nuevas icnitas de grandes mamíferos en el Mioceno de la Cuenca del Ebro (Huesca, España)

open access: yesGeogaceta, 2023
El yacimiento de Los Ibones supone una nueva aportación al conocimiento del registro icnológico de vertebrados del Mioceno de la Cuenca del Ebro. El yacimiento se encuentra en la superficie de un nivel de calizas en el tránsito entre las formaciones ...
Martín Linares Montes   +3 more
doaj   +1 more source

Unraveling differences in fecal microbiota stability in mammals: from high variable carnivores and consistently stable herbivores

open access: yesAnimal Microbiome, 2021
Background Through the rapid development in DNA sequencing methods and tools, microbiome studies on a various number of species were performed during the last decade. This advance makes it possible to analyze hundreds of samples from different species at
Franziska Zoelzer   +2 more
doaj   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Genetic characterization of the prion protein gene in camels (Camelus) with comments on the evolutionary history of prion disease in Cetartiodactyla [PDF]

open access: yesPeerJ
Transmissible spongiform encephalopathies (TSEs) are a fatal neurogenerative disease that include Creutzfeldt–Jakob disease in humans, scrapie in sheep and goats, bovine spongiform encephalopathy (BSE), and several others as well as the recently ...
Emily A. Wright   +5 more
doaj   +2 more sources

Rhinoceros sondaicus (Perissodactyla: Rhinocerotidae) [PDF]

open access: yesMammalian Species, 2011
Rhinoceros sondaicus Desmarest, 1822, commonly called the Javan rhinoceros or lesser one-horned rhinoceros, is the most critically endangered large mammal on Earth with only 40–50 extant individuals in 2 disjunct and distant populations: most in Ujung Kulon, West Java, and only 2–6 (optimistically) in Cat Loc, Vietnam. R.
Groves, Colin, Leslie, David
openaire   +2 more sources

Conservation Status, Decline Factors, and Strategies for Globally Endangered Musk Deer (Moschus spp.) in China 中国境内全球濒危麝属 (Moschus spp.) 物种的保护现状、致危因素及应对策略

open access: yesWildlife Letters, EarlyView.
This review summarizes the status of musk deer in China, highlighting severe population declines due to illegal hunting and habitat loss, and proposes integrated conservation strategies including habitat protection, captive breeding, and law enforcement to support the recovery and sustainable management of this ecologically and economically important ...
Feng Jiang   +8 more
wiley   +1 more source

Body Mass Records of Zoo‐Managed Rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis) as Compared to Field Data of Free‐Ranging Specimens

open access: yesZoo Biology, EarlyView.
Female white rhinos in zoos systematically exceed the body mass range for free‐ranging specimens; this is not the case in black rhinos. ABSTRACT The body mass of zoo animals may differ from those in wild populations due to the different environmental and dietary conditions being offered under human‐managed care.
Elisa Garand   +7 more
wiley   +1 more source

Frequência da artéria caroticobasilar em equinos mestiços: estudo anatômico destinado a pesquisa experimental e ao diagnóstico por imagem Frequency of the caroticobasilar artery in crossbred horses: anatomical study for experimental research and diagnostic imaging

open access: yesPesquisa Veterinária Brasileira, 2010
A busca pela compreensão do funcionamento do sistema nervoso resultou em um aumento de estudos morfológicos sobre a vascularização encefálica em diferentes espécies animais.
Ana Virgilia Paiva-de-Souza   +5 more
doaj   +1 more source

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