In the winter, humpbacks come to the warmer waters of Hawaii, Japan, Mexico, and Australia to mate and have their young. In the warm summer months, however, they feed in the rich waters of Alaska and Antarctica. Varies with origin.
Southern whales tend toward white.
Northern whales black with white throat grooves. Sharp 'hump' characteristic of the dorsal area noted especially on deep dives. Each whale has its own unique set of tail fluke designs, sort of like fingerprints. Scratches, variations of white and black, and even a distorted shape may help researchers to identify individual humpback whales. Scratches may be caused by the teeth of predators, since one of the humpback's primary defenses is it's powerful tail.