Humpback whales have 330 pairs of baleen plates. Humpback baleen are approximately 25 inches long and 13.5 inches wide. A whale's tail is composed of two lobes, each of which is called a fluke. Flukes are made of muscles and dense fibrous tissue. Whales use their flukes to propel themselves through the water.
Whales have lungs.
They breathe air into their lungs through their 'Blowholes'. Blowholes are located on the top or back of a whale's head, depending on species. Humpback whales' blowholes are located near the top of their heads. Humpbacks breathe approximately one or two times per minute while at rest, and four to eight times per minute after a exertive deep dive. Whales sleep approximately eight hours per day.