Ronja, a female arctic fox, is making life interesting. She gave birth to her cubs on 26 April, but only now are the zookeepers and visitors getting their first glimpses of these tiny, tousled bundles of fur. Previously five cubs had been counted, but then a sixth was spotted. The guinea pig-sized arctic fox babies have been well guarded and know their comfy den very well. In the arctic fox enclosure there are four huts and the polar foxes - as arctic foxes are also known - have dug themselves a total of 15 dens. The cubs spend most of their time cuddling up to their mother Ronja in the den. They only rarely drink her milk now as, thanks to their pointed teeth, they can already eat meat.

Although the young animals still sleep a lot, they are getting more active day by day. Approx. five times a day Mum, Ronja (2 years old) and Dad, Yaqui (2) show them the world beyond the den for about 15 minutes at a time. It's easy to tell the cubs apart by the colour of their fur - one has white paws, another a white bib.  Zookeepers have even seen one completely grey animal. It's too not yet known what sex they are. Learn more ->