Interesting fact:

Bears are very smart and have been known to roll rocks into bear traps to set off the trap and eat the bait in safety. Did you know that bears can see in color? Bears also have an excellent sense of smell, better than dogs and possibly any other mammal. The polar bear is the largest land predator on earth. Bears live as long as 30 years in the wild. One captive brown bear lived to the age of 47.