A Tokyo zoo staged an emergency drill on how to respond if rhinoceros were to escape from their enclosures.
An escape is a real worry for zoo officials in a country that is one of the most earthquake-prone places in the world.
There is concern that an earthquake could damage enclosures and allow dangerous animals to escape. As such, Ueno Zoo wanted to give their response team some practice - without using a real animal.
Two employees from the zoo dressed up as a fake 'rhino' and simulated an escape in front of visitors.
"A lesson was learned after the disaster at the nuclear power plant (in Fukushima); we should never be too confident about security measures," said Ueno Zoo Director Toshimitsu Doi. "So it is important to put in practice in daily operations to be prepared for something that is unexpected."
Last year on March 11, Japan was devastated by a magnitude-9 quake and subsequent tsunami. Nearly 20,000 people were killed or remain missing.
3 News / APTN