### Identification The Humpback (*Megaptera novaeangliae*) is the "big-winged" acrobat of the sea. Reaching 14–16 meters, they are distinguished by massive, white pectoral fins that can be one-third of their body length. Look for the "tubercles"—golf-ball-sized sensory bumps—on their snout and lower jaw. Unlike the sleek Fin whale, the Humpback has a stocky build and a small, nub-like dorsal fin sitting atop a fleshy hump. Before a deep dive, they "fluke up," revealing the underside of the tail; these black-and-white pigment patterns are as unique as a human fingerprint, allowing naturalists to track individuals for decades.
### Habitat & Range These are the world’s ultimate commuters, found in every major ocean. They spend summers in nutrient-rich, high-latitude feeding grounds (like the Gulf of Maine or Southeast Alaska) and migrate up to 8,000 kilometers to tropical waters (such as Hawaii or the West Indies) to breed and calve in winter. They prefer shallow coastal shelf waters, making them the most accessible great whale for shore-based observers.
### Behaviour Humpbacks are the most charismatic of the baleen whales. You’ll likely witness "breaching"—launching their 40-ton bodies entirely out of the water—or "pectoral slapping." Males are famous for their complex, haunting songs, which can last 20 minutes and travel hundreds of miles. In the field, look for the "bushy" blow, which rises about 3 meters, followed by the iconic arching of the back that gives them their name.
### Diet These "lunge feeders" target krill and small schooling fish like herring and capelin. They employ a brilliant cooperative strategy called "bubble-net feeding": a group swims in a shrinking circle while blowing bubbles from their blowholes, creating a shimmering curtain that corrals fish into a tight ball. The whales then surge upward through the center with mouths agape.
### Fascinating Fact Humpback songs are subject to "cultural revolutions." All males in a population sing the same song, but the melody evolves every year. If a whale from a different region introduces a "catchier" tune, the entire population may ditch their old song and adopt the new one within a single season!