アメリカ自然史博物館のインスタグラム(amnh) - 1月9日 23時39分

Today’s Exhibit of the Day is the North American Beaver diorama in the Hall of North American Mammals! The beaver isn’t your typical rodent. It’s the largest one on the continent, and the only one that can cut down mature trees. It uses timber to build large, elaborate nests—dome-shaped lodges with underwater entrances—inside ponds. If there is no pond, it’ll create one by building a dam to block a stream. The resulting moat around their lodges keeps wolves, coyotes and other predators at bay.
Photo: D. Finnin/© AMNH

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