The winner

I believe these two Grizzly Bears are orphans that were brought to the Zoo when they were younger. While I was there, they were really active and were play-fighting and tumbling. Had to take photos through a filthy, plastic (? but something VERY strong!) window, which doesn't lead to very good photos, but does avoid having metal netting in front as well as behind the animals. One of the bears was having so much fun somersaulting and rolling in the snow.