Caption: A well-developed black bear cub, at around 3 months old, can climb trees to avoid danger. The cub's mother will encourage the cub to climb and will do what is necessary to protect her cub. Black bears are good runners, swimmers and climbers. And, Pocosin Lakes Refuge is often a great area to observe black bears. But as the weather gets colder they'll be less bear activity. And by January, which is often the black bear's birthing month, bear activity really slows down until the warmer late spring.