Життя білих ведмедів поділене на два сезони полювання на льоді та голодування на

Polar bears’ lives are broken into two seasons. The first is winter, the feasting season when bears hunt seals while roaming the pack ice.
Then there is summer, the fasting season when the absence of ice pushes the bears onto dry land, where food can be scarce. Their diet is low in protein during this time, consisting mainly of bird eggs and kelp. Occasionally they may find a whale carcass on the beach.

National Geographic