ナショナルジオグラフィックのインスタグラム(natgeo) - 3月20日 07時02分

Photo by @chamiltonjames (Charlie Hamilton James) | A sea otter mom clutches her pup on the coast of central California. The pup is only a few weeks old and still totally reliant on its mother for milk. At this young age, the pup’s fur is so thick that it keeps it afloat. Sea otters have very little fat to keep them warm; instead, they have super-thick fur. With around one million hairs per square inch, they have the warmest fur of any animal.

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