Polar bear cam to help science
Media playback is unsupported on your device

Polar bear cam to show bears' response to declining sea ice

11 January 2017 Last updated at 10:22 GMT

A camera attached to the neck of a female polar bear shows two bears breaking through ice sheets to hunt for prey.

The US Geological Survey hopes the camera will help researchers better understand how the animals are responding to declining sea ice levels.

Footage courtesy of US Geographical Survey