过去，肠球菌由于携带抗生素抗性基因或其他毒力因子基因，常被视为机会致病菌。然而，近年来的研究表明，特定的肠球菌，如蒙氏肠球菌，可能具有对动物和人类有益的特性。蒙氏肠球菌能产生肠球菌素（enterocins，一种抗菌蛋白质类物质，也属于后生元 postbiotics），可用于预防乳腺炎。因此，深入研究蒙氏肠球菌，挖掘其潜在价值，对保障动物和人类健康意义重大。

在生物体的一生中，细胞不断分裂和更新，而分裂过程中的错误可能导致体细胞突变，随着时间的推移，这些突变可能增加癌症的发生风险。因此，从理论上讲，体型较大的动物因拥有更多的细胞，其癌症发病率应该高于体型较小的动物。

The first is vehicle collisions. In Los Payuelos, a canal in Spain’s northwestern León region, repeated drownings of roe deer (Capreolus capreolus) have been recorded. In one incident a few ...

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Browse 3,900+ summer camo stock videos and clips available to use in your projects, or search for summer camp to find more stock footage and b-roll video clips. One octopus swimming underwater ...

ProGenTomics, Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent 9000,Belgium ArcheOs Laboratory for Biological Anthropology, Faculty of Arts and ...

Tuberculosis (TB) is caused by the slow-growing acid-fast bacillus Mycobacterium tuberculosis. Until 1980 it was considered as a controlled disease worldwide; however, this scenario was transformed ...