Over 100 Beluga whales 'trapped in Bering Sea'

Over 100 Beluga whales are trapped in water between ice floes in the Chukotka region of Russia's Far East, the authorities said, calling on the government to send an ice-breaker to free them.

Ice-age lesson: Large mammals need room to roam

A study of life and extinctions among woolly mammoths and other ice-age animals suggests that interconnected habitats can help Arctic mammal species survive environmental changes.

Federal officials investigate walrus deaths in Alaska

Two groups of Pacific walrus have been found dead along the Chukchi Sea northwest of Alaska. One incident is the subject of a criminal investigation. The other has been blamed on natural causes.

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