首先，河狸（Castor canadensis）是一种独特的水生啮齿动物，因其体态微胖而被称为“水中的建筑师”。河狸以其两颗大门牙而闻名，能够轻松咬断树枝，构建起壮观的水坝，改变水流环境。河狸的尾巴扁平，形状像一把板子，适合在水中游动时帮助它们保持方向。作为素食主义者，河狸主要以嫩树枝和树皮为食，更是生态系统中的重要组成部分，促进了湿地的形成，维持了周围生物的多样性。

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The Nebraska Statewide Arboretum and the Nebraska Nursery and Landscape Association has announced this year's GreatPlants selections. The selections offer gardeners and landscapers perennial ...

One of the most widely distributed waterfowl species in the United States is the Canada goose (Branta canadensis). Due to habitat loss and overexploitation in the 19th and early 20th century, the ...

A honking force of nature, these large waterfowl are as much at home on suburban lawns as they are in wild wetlands. The Canada Goose is characterized by its large size, long neck, and distinctive ...