スミソニアン国立動物園のインスタグラム(smithsonianzoo) - 3月23日 06時24分

How long can a harbor seal hold its breath? Thirty minutes! These marine mammals are able to dive 500 feet below the water's surface. When they do, their heart rate slows from around 80 beats per minute to as few as three or four! Meet Luke, our harbor seal, at American Trail! VISIT: https://nationalzoo.si.edu/visit/daily-events. #InternationalSealDay

[BIHAKUEN]UVシールド(UVShield)

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