スミソニアン国立動物園のインスタグラム(smithsonianzoo) - 12月24日 02時48分

Why do beavers look like they're smiling? Their lips do not close over their incisors. This adaptation allows a beaver to swim and work underwater without its mouth filling with water! Every day at 1:30 p.m., animal care staff introduce visitors to one of the species on American Trail. Check the board located near the tide pool for information on the daily demo. PLAN YOUR VISIT: https://nationalzoo.si.edu/visit/daily-events.

[BIHAKUEN]UVシールド(UVShield)

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