"Despite pictographs and paintings found in caves and on cliffs depicting the struggle between ancient man and bears, nearly all Canadian Indians I have known considered bears an ancient race of people. They pointed to the bear's five toes on each foot, to his ability to walk and run on his hind legs, to the fact that all species possessed much the same traits, and to the dental cavities of those whose diets included too many sweets. Aside from certain simians, the bear is the only animal known to throw objects back and forth between two or more individuals. It couldn't have escaped even the most amateur observer that bears have another point in common with man in that they train their young in offense, defense, food procurement, and play."
- from The Bears and I, by Robert Franklin Leslie, an amazing true story(now out of print I think) about a guy who raised three bear cubs in BC, back in the 30s.