Black bears vary a great deal in both size and colour. Although black is the most common colour, there can be periods of time when black bears are shades of brown. Others have white coats (Kermode bears) and one of the rarest has a pale-blue coat (glacier bears). Both of these are found in British Columbia. The size of an adult male black bear can range from 50 to 75 inches and they can anywhere from 130 to 660 pounds. Adult females are also between 50 and 75 inches tall, but weigh 90 to 175 pounds. At birth, a cub usually weighs about 7 to 11 ounces.