Vienna Zoo marks World Polar Bear Day

Polar bears face starvation crisis as 'climate change forces extended land stays'

Polar bear plays with plastic container in zoo enclosure

Polar bear sent to another zoo as cub returns to birthplace in Austria after 15 Years

Playful polar bears slide around snow with ball during cold spell in Japan

Youngsters have photos with giant polar bear statues at arctic event in St Petersburg, Russia

Polar bear receives giant frozen salmon cake for her birthday at zoo in Austria

Polar bears at Vienna Zoo play in the snow as organisation joins scheme to protect endangered speci