北美河狸是栖息在美国和加拿大温带林地和沿河区域的大型啮齿动物。北美河狸有双层毛皮，意思是其毛皮表面有一层长而粗的毛发，底下还有一层较短而细的毛发。这种毛皮使河狸的毛皮看起来很粗糙。河狸的外观有可能是棕色、红色或褐色，有小耳朵和小眼睛、高高竖起的黑色鼻子，以及明显的巨大门牙。北美河狸头部加身体的长度为 74 至 90 厘米，尾长 20 至 35 厘米，体重介于 11 至 32 公斤之间。
Latin Name
Castor canadensis
Featured
true
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north-american-beaver
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Animal Facts
North American beavers can remain underwater for up to 15 minutes.
North American beavers can recognize their relatives even if they are born several years apart and have never previously met.
North American beavers may slap their tail on the surface of water repeatedly in response to danger.
North American beavers are known to store food branches underwater near their lodge so they have food throughout the winter.
The North American beaver secretes an oil called ‘castoreum’ which it uses to waterproof its fur – it can be used in perfume and food production.
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