They prefer areas of annual ice, which they use as a hunting platform and protective cover. This includes snow-drifted pressure ridges, refrozen cracks and areas of open water surrounded by ice. In areas where the pack ice melts by mid to late summer they come inland and live in coniferous forest areas. Here they remain until the ice re-freezes. Areas of solidly frozen sea ice and the open seas are avoided. Generally they are most common along coastal areas. Some do enter the permanent ice pack. The display area for the polar bears at the zoo included a grassy area and huge rocks which could act as ice. There was a small pond of water. Improvements could be made by making the pond bigger for the huge polar bears.
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