A normal human being would never be able to safely get close enough to see young bears in this way. There's a brand new video that shows a Grizzly sow and her cubs and it is a rare look at how these cubs play.
This is both hilarious and terrifying. There's a new video show shows a bison in Yellowstone letting a tourist RV know it's not welcome in the loudest way possible. Make sure you have your speakers turned up for this one.