Men in bear costumes release pandas into wild

Giant panda Cao Cao and its cub were released into the Wolong Nature Reserve in China for the first time on Sunday.

In an extremely delicate operation, their handlers wore bear costumes to minimise the impact of human contact.

The bears will be monitored on a regular basis to ensure they have best chance of survival in the wild. Breeding experts will keep a distance from their new home, watching their daily activities through hidden cameras.