It's spring, and you want to get out into nature, and take deep breaths of the forest's cold sweet damp, and commune with the wildlife, and maybe snap a few pics or a Vine to remember the life-affirming majesty.

Fine, fine. But here is some advice for you: Beavers are nasty.

A Belarussian fisherman was recently bitten to death by a beaver after he'd tried to get a photo of the sharp-toothed critter, according to SkyNews:

He stopped so that he could take a picture but as he approached the beaver it pounced on him, biting him in the thigh.

His friends attempted to stem the flow of blood from the wound but the animal's bite had severed a main artery and the man, who came from Brest, bled to death.

Isolated incident? Nope. The report cites recent beaver attacks in New York, Virginia, and Washington state. They've even gone after Boy Scout leaders. And then there's the video above, posted to YouTube Tuesday by a hiker in Russia's Tver district, north of Moscow. The poster claims in the video's description that he was knocked to the ground, losing a shoe, and grateful to have scampered away on all fours. "Those who have seen the teeth of beavers will understand," he writes.

So the next time you're out in the woods, and you see a beaver, and you think, "Hey, maybe I can get some of that FDA-approved natural sweetener from that beaver's anal sacs": Just walk away. [SkyNews, YouTube]