The cub, in the left of the picture, lying on its mother Victoria in a CCTV image from the bears' den A polar bear cub has been born at the Highland Wildlife Park in the Cairngorms National Park.

A baby polar bear cub has died in a Berlin zoo. Officials at Berlin's Tierpark zoo said that the young polar bear, which was born in December, was found dead when the zoo re-opened on Tuesday.

The melting of Arctic sea ice in the Hudson Bay is significantly impacting polar bears' ability to hunt, sustain energy and ensure the survival of cubs -- leading to a 50% population decline since ...