Seeing how quickly and aggressively this mama bear moves to protect her cub from a male black bear is amazing to watch. Most people going into areas with bears are aware that you don’t mess with a mama bear with cubs and this video filed near Frenchtown, MT shows why people should adhere to that advice. The speed she covers the timber-laden ground and then climbs the tree is truly remarkable and explains why you can’t outrun a bear. If you want to see another remarkable bear video watch this Bear Fishing For Salmon.