动物学的一个分支学科，是研究哺乳动物（或兽类）的分类、形态、解剖、生理、发育、生态、行为、分布、进化及其与人类关系的科学，又称哺乳动物学。
为此，对国家自然科学基金委员会生命科学部1 986年以来所资助有关兽类学研究项目进行了统计分析。
To reveal these information, both the numbers and amount of funds for projects concerning mammalogy supported by the Department of Life Science, NSFC, since 1986 were statistically analyzed.
它也说明了一个基本的生态学原理：自从达尔文时代以来，科学家们已经注意到，岛屿常常是过大兽类和微型兽类的家园。
It also illustrates a fundamental ecological principle: Since Darwin's days, scientists have noticed that islands often are home to both oversized and miniaturized beasts.
但由于动物的某些生物学特性，不同兽类的活动会在野外留下特定的踪迹，这为野外鉴别、观察和研究提供了重要的线索。
Different mammals would leave different marks of activities and special carry-overs, which have provided important clues and evidence for the identifications, observations and studies of wild mammals.
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