Up close look at these barnacles and tubercles! When they leave their feeding grounds, a single humpback may have up to a ton of barnacles attached to its body. Although barnacles attach to humpback whales, they feed on microorganisms stirred up as the humpbacks move about the ocean rather than directly feeding off the whales themselves. As if barnacles aren’t enough, each whale species hosts its own unique variety of whale lice, highly specialized animals that feed on algae and whale skin. Alth