Humpback Whales are whales with a giant hump on their back. They sing songs to other whales to communicate. These whale are baleen whales, meaning instead of teeth, they have a baleen. It has bristles like like a toothbrush and acts as a filter. It filters out krill for the whale to eat from the water, and the water left over is expelled out of the blowhole. They live for about 48 years.