Humpback whales catch their food using a feeding method called bubble-net feeding, where they swim in a shrinking circle while blowing bubbles to herd schools of krill, anchovies, cod, sardines, mackerel, and capelin. Humpback whales face threats from human activities like pollution, illegal whaling, noise, fishing gear, ship collisions, and habitat degradation. Their habitat ranges along the coasts of the continental United States.