This little guy was exploring everything. Mom was near by, "Rosie", and so was another sibling with a lighter coat. This cub was very active and received most of my camera time. Climbing up small sticks and falling and reclimbing. I was using a 600mm with a 1.7 converter on a DX body and this is a cropped image, so I was a long, long way off. I later learned Rosie put the cubs on display yearly in the Tower area of Yellowstone.