ホッキョクグマの赤ちゃん、独動物園でお披露目 名前は投票で「ミカ」に（字幕・12日） - Reuters

ホッキョクグマの赤ちゃん、独動物園でお披露目 名前は投票で「ミカ」に（字幕・12日）  Reuters

Researchers Develop a ‘Bear-Dar’ That Warns Humans of Approaching Polar Bears - Smithsonian Magazine

Researchers Develop a ‘Bear-Dar’ That Warns Humans of Approaching Polar Bears  Smithsonian Magazine

Polar bears - World Wildlife Fund

Polar bears  World Wildlife Fund

In the gateway to the Arctic, fat, ice and polar bears are crucial. All three are in trouble - AP...

In the gateway to the Arctic, fat, ice and polar bears are crucial. All three are in trouble  AP News

Polar bear - Center for Biological Diversity

Polar bear  Center for Biological Diversity

Some of It May Have Started at the River: Thordis Adalsteinsdottir - Artsy

Some of It May Have Started at the River: Thordis Adalsteinsdottir  Artsy

‘Peppa Pig’ debuts lesbian polar bear couple - New York Post

‘Peppa Pig’ debuts lesbian polar bear couple  New York Post

Mercury, PCBs still threaten Arctic and its wildlife, study shows - CBC

Mercury, PCBs still threaten Arctic and its wildlife, study shows  CBC

ベルリンのホッキョクグマ赤ちゃん、18日に一般公開へ - Reuters

ベルリンのホッキョクグマ赤ちゃん、18日に一般公開へ  Reuters