Polar bears roaming in London

A realistic "polar bear" seen wandering the streets of London and even riding the city's subway was a high-tech puppet (All photos: Splash/All Over Press)

The 8-foot-long beast was built by 19 prop specialists over the course of eight weeks 


(All photos: Splash/All Over Press)

The "animal" was operated by two puppeteers inside the bear who practiced for weeks

 (All photos: Splash/All Over Press)

A realistic "polar bear" seen wandering the streets of London and even riding the city's subway was a high-tech puppet (All photos: Splash/All Over Press)

The purpose of the stunt was to give people a realistic experience of what it may feel like to come face to face with the largest predator mammal  (All photos: Splash/All Over Press)

The puppet also took a ride on a London Underground train
(All photos: Splash/All Over Press)