polar bear

polar bear

polar bear

polar bear

polar bear

polar bear

polar bear

polar bear

polar bear

polar bear

WWF Polar Bear Patrol at work on Russia’s east coast

WWF Polar Bear Patrol at work on Russia’s east coast

The bear cub Ayon was saved by the Polar Bear Patrol in 2011

A polar bear on the observation site of the Vaygach polar station

A polar bear on the East Siberian Sea shore

A polar bear on the East Siberian Sea shore

A polar bear on the East Siberian Sea shore

In the summer of 2014, polar bears used to stalk the Fyodorov Polar Station

In the summer of 2014, polar bears used to stalk the Fyodorov Polar Station

In the summer of 2014, polar bears used to stalk the Fyodorov Polar Station

Milana in the Volokolamsk sanctuary of the Moscow zoo

Milana in the Volokolamsk sanctuary of the Moscow zoo

Milana in the Volokolamsk sanctuary of the Moscow zoo

Milana in the Volokolamsk sanctuary of the Moscow zoo

Milana in the Volokolamsk sanctuary of the Moscow zoo

Milana in the Volokolamsk sanctuary of the Moscow zoo

Ayon in the Volokolamsk sanctuary of the Moscow zoo

Ayon in the Volokolamsk sanctuary of the Moscow zoo

Ayon in the Volokolamsk sanctuary of the Moscow zoo

Ayon in the Volokolamsk sanctuary of the Moscow zoo

Ayon in the Volokolamsk sanctuary of the Moscow zoo

Ayon in the Volokolamsk sanctuary of the Moscow zoo

During pregnancy, a female bear has to hunt for food because she needs to double her weight

Polar bears do not hibernate; only pregnant females lie in the den

A female polar bear does not give birth to more than five cubs in the course of her life

A female bear’s pregnancy lasts 230–240 days, after which she gives birth to tiny bear cubs weighing 400–750 g

Polar bears are considered among the most caring and dedicated mothers in the animal kingdom

Newborn bear cubs need round-the-clock care

A mother takes care of her cubs for two years until they reach maturity