A Weddell seal mother and pup with their breathing hole, which must be kept continuously open.

一只威德尔海豹(Weddell seal)母亲和她的幼崽待在透气孔边上，透气孔必须得始终保持通畅。

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A Weddell seal mother and pup with their breathing hole, which must be kept continuously open.

一只威德尔海豹(Weddell seal)母亲和她的幼崽待在透气孔边上，透气孔必须得始终保持通畅。

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