Giraffes eat fresh leaves hacked down by chainsaw wielding zookeepers

Critically endangered chameleon has babies at zoo in Austria

World's oldest zoo welcomes king penguin twin chicks for the first time

Rescued rare chameleons smuggled into Austria inspire new centre at country's zoo (3)

Rescued rare chameleons smuggled into Austria inspire new centre at country's zoo (2)

Rescued rare chameleons smuggled into Austria inspire new centre at country's zoo

Critically-endangered baby orangutan holds tightly to its mum hours after being born at zoo in Austria

Endangered elephants at world's oldest zoo get huge tree treat in Austria

Rare Burchell's zebra foal shown off by proud mum in Vienna, Austria zoo