We're big bear fans here at Asylum. So when this footage from the BBC's animal doc "Polar Bear: Spy on the Ice" hit YouTube, we had to share it with you.

As part of the documentary process, a team recording the polar bears used a series of spy-cameras, hidden in "rocks" or "snowballs" to see what the bears were up to on the sly.

But polar bears aren't so easily fooled. Watch below to see the foreign white ball get promptly stomped upon by a big ol' bear.