Serbian zoo animals enjoy winter weather

Winter's cold brings out the playful side of seals at the Belgrade Zoo.

And it seems the cats like rolling snowballs just as much as their human counterparts.

The Serbian Zoo is a breeding center for white lions.

With temperatures around minus 10 Celsius and expected to drop below minus 25 next week, some animals prefer to stay inside where its warm.

The Zoo uses heating lamps and takes other precautions to protect its residents.

One zookeeper breaks up ice from a precarious perch for the swans waiting nearby.

The cold spell that is also affecting much of Europe has prompted Serbia to declare a state of emergency in 32 municipalities.

Lindsey Parietti, Reuters