スミソニアン国立動物園のインスタグラム(smithsonianzoo) - 7月1日 23時38分

Did You Know: A beaver's incisors (the long, dark orange visible teeth) are self-sharpening and can cleave a willow the size of a person's finger in a single bite. Incisors grow throughout a beaver's life and, through daily use, are continuously worn down. Visit Chloe, Birch, and Chipper on American Trail! https://nationalzoo.si.edu/visit

[BIHAKUEN]UVシールド(UVShield)

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