An otter finds a stone in the water: when you'll see how he uses it, you won't believe it!

Seeing a seal performing with a ball is great, but what about this cute otter? It seems like he's enjoy his relaxing time by the river, having fun with a rock found in the water. It's amazing to see how he likes to play, just like the best jugglers ... especially if you think that he's a wild animal and that no one taught him to do so...