fauna
/ˈfɔnə/
all the animal life in a particular region or period
中文释义：动物群；动物区系
The island's unique fauna includes several species found nowhere else.
该岛独特的动物群包括几种其他地方没有的物种。
Deforestation threatens the fauna of the Amazon rainforest.
森林砍伐威胁着亚马逊雨林的动物群。