Black bears are solitary, except for mothers with offspring. A dominance hierarchy may exist where food is abdundant. During the mating season, males may fight to establish access to estrous females. Bears have color vision and keen sense of smell, are good tree climbers, swim very well and can run up to 30 miles per hour. Due to the heavier weight they may have problems climbing a tree in a hurry.
Bears eat mostly berries, nuts, animal carrion, grubs, and insect larvae.
BTW, you forgot garbage, one of their mainstays. In the fall, black bears are heavily dependent on the acorns of the white oak tree. In the autumn, many bears that spend most of the year in the higher mountains. The summer diet consists mostly of fruits such as serviceberry, huckleberry, blueberry, blackberry, and insects such as yellow jackets, ants, and beetles. Fall foods are important for bears because they need to store body fats to survive the winter when no foods are available.