Tokyo's Ueno zoo conducts its bi-annual drill to train the zookeepers for contingencies of escaped tiger - using a person dressed up in a tiger outfit

Every two years the Ueno zoo in northern Tokyo carries out an animal escape drill to train for real animal break-outs.

In the past, zebras, gorillas, rhinos and polar bears have served as models for the simulation but 2010 is the Year of the Tiger.