This Insanely Realistic Polar Bear Puppet Will Leave You Speechless

Who let the polar bear out?

Nope, you're not dreaming. That really is a polar bear strolling through the streets of London. Well, a polar bear puppet to be precise.

To mark the launch of Sky Atlantic's new drama "Fortitude," the Arctic beast made appearances around the city, taking London's Tube and walking across the Millennium Bridge, to the surprise of commuters.

It took a team of 19 Hollywood prop specialists six weeks to put the animatronic bear together.

And yes, there are actually two puppeteers hiding inside.

They spent a lot of time watching polar bear footage...

To learn to move and behave as realistically as possible.

"I have to say I feel a little bit nervous standing here with my back to it," confessed a passerby.

The bear is so insanely realistic, it gives us shivers.

It even fooled the puppy!

"Pics or it didn't happen."

Now, make sure to watch the video below to see the polar bear in action.

Photo credit: David Parry/PA Wire via Flickr.

Related: 576 Man-Hours Went Into Creating This Mind-Blowing One Second GIF.

Like this? Please share it by clicking below.