Arctic National Wildlife Refuge
The California Academy of Sciences Presents Arctic National Wildlife Refuge
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  Polar Bear Den with Tracks of Mother and Cubs. Photograph © Subhankar Banerjee
Photograph © Subhankar Banerjee

ANWR Exhibit Photographs

Polar Bear Den with Tracks
of Mother and Cubs

Coastal Plain

The Arctic Refuge is the only national conservation area in the United States where polar bears regularly den. The coastal plain is the most consistently used land denning area for polar bears of the Beaufort Sea. The pregnant bears dig their dens in November, then give birth to one or two tiny cubs in December or January. The mothers nurse and care for the young at the den until March or early April.

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