A polar bear cub has taken its very first steps into the outside world after nearly four months spent in a den with its mother.

Zookeepers at Tierpark Berlin breathed a sigh of relief as the quickly growing cub emerged with her nine-year-old mum Tonja.

The sprightly young bear wasted no time in getting to know her new surroundings as she clambered over rocks and splashed in a large pool when she went outside on March 16.

A polar bear cub has taken its very first steps into the outside world after nearly four months spent in a den with its mother. Zookeepers breathed a sigh of relief as the quickly growing cub emerged with her nine-year-old mum Tonja. Tierpark Berlin has watched the helpless and tiny newborn grow into a strong and sturdy cub that is getting too big to be measured by zoo staff. But the sprightly young bear wasted no time in getting to know her new surroundings as she clambered over rocks and splashed in a large pool when she went outside on March 16.