Watch a Wild Encounter of a Bear and Mountain Biker

Bears are often calm and go about their own business, until fast and noisy things interrupt their routine.

Check out this viral video, which has already racked up millions of views on YouTube, of a massive brown bear tearing after a mountain biker riding trails through a park in Slovakia.

A camera mounted on the bike catches the bear running out of the woods to chase the biker ahead of him, before losing steam and turning back into the wilderness.

Be careful out there, check notices for bear warnings and remember that you’re on their turf.