Berlin, Germany - Undated

The video shows the two Sumatran tiger cubs that were recently born at the Tierpark Berlin in Germany.

This is the adorable moment boy twin tiger cubs take their first cautious steps into public life as they emerge from their lair in a German zoo.

The critically endangered Sumatran tigers were born nearly eight weeks ago (on 25th February) to 13-year-old mum Mayang at Berlin Zoo.

They now weigh in at just over 18 lbs and 15.5 lbs, say vets.
Now in new video footage, the cubs are seen exploring their enclosure in public for the first time.

As they emerge from the rock face entrance to their den, the brothers keep low as they clamber over the landscape keeping a wary eye on their audience.

At one point one of them tries his best to let out a full-on roar only to have it emerge as a tiny squeak.

Mum soon lends a hand and pops out to give one of her sons a comforting lick.

A second clip shows zoo vets giving the cubs their first vaccinations after determining their gender.
Even though the cubs are still tiny, both carers are wearing thick leather gloves to protect themselves from straw claws and teeth.