Results 51 to 60 of about 12,949 (225)

Histological analysis of spermatogenesis and the germ cell seasonal development within the testis of domesticated tree shrews (Tupaia belangeri chinensis)

open access: yesFolia Morphologica, 2022
BACKGROUND: This study aimed to address the lack of information on the male germ cell seasonal development of domesticated tree shrews (Tupaia belangeri chinensis).
J. Tang   +6 more
doaj   +1 more source

Vertebrate Natural History Notes from Arkansas, 2017 [PDF]

open access: yes, 2017
Because meaningful observations of natural history are not always part of larger studies, important pieces of information often are unreported. Small details, however, can fills gaps in understanding and also lead to interesting questions about ...
Buckley, M.   +10 more
core   +3 more sources

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

RNA-Sequence Reveals the Regulatory Mechanism of miR-149 on Osteoblast Skeleton under Mechanical Tension

open access: yesStem Cells International, 2022
Objective. Based on RNA-sequencing (RNA-seq), the regulation of miRNAs differentially expressed in dental, periodontal, and alveolar bone tissue of orthodontic tree shrews on osteoblast skeleton under tension was investigated. Methods.
Yifan Wang   +6 more
doaj   +1 more source

Uppermost Pleistocene shrews (Mammalia, Soricidae) from Vaskapu Cave (N-Hungary) [PDF]

open access: yes, 1999
Three shrew species (Sorex araneus LINNAEUS1758, Sorex minutus LlNNAEUS1766 and Sorex alpinus SHINZ1837) were found in the fossiliferous sediments of Vaskapu Cave, near Felsötárkány.
Mészáros, L. Gy.
core  

Placental crises: disruptive selection and maternal under‐investment as the foundations of mammalian placental evolution and dysfunction

open access: yesBiological Reviews, EarlyView.
ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon   +5 more
wiley   +1 more source

Decoding thymic development: a single-cell atlas of tree shrew immunity

open access: yesFrontiers in Immunology
The tree shrew is a potential mammalian model for preclinical studies, but its immune system is not well understood. In this study, we utilized single-cell RNA sequencing (scRNA-seq) to construct a comprehensive cell atlas of the postnatal thymus ...
Haibo Tang   +20 more
doaj   +1 more source

Organic farms as refuges for small mammal biodiversity in agro ecosystems [PDF]

open access: yes, 2011
Habitat fragmentation, the process by which relatively continuous habitats is broken into smaller pieces, occurs in natural systems but is to a high degree also human-induced through landscape use.
Hansen, Tine Sussi   +2 more
core  

Wild meat consumption in changing rural landscapes of Indonesian Borneo

open access: yesPeople and Nature, EarlyView.
Abstract Wild meat can play a crucial role in the food system of rural communities residing near tropical forests. Yet, socio‐ecological changes across tropical landscapes are impacting the patterns and sustainability of meat consumption. To understand the prevalence, frequency and drivers of wild meat, domestic meat and fish consumption in this ...
Katie L. Spencer   +12 more
wiley   +1 more source

Optimizing procedures for ocular radiation injury studies in the tree shrew [PDF]

open access: yesExploration of Targeted Anti-tumor Therapy
Radiation exposure to the eye during cancer treatment can lead to ocular radiation injury (ORI), a devastating condition that can have a profound and permanent impact on vision-related quality of life. Rodent models do not have adequate ocular anatomy to
Lauren A. Dalvin   +17 more
doaj   +1 more source

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