Humpback Whale with Split Dorsal Fin | Vava'u, Tonga
This humpback whale’s dorsal fin has both a split and a unique bump at the frontal end, making it easy to identify. Split dorsal fins are both easy to spot and relatively uncommon. This whale was one of a pair of whales traveling together, probably both male, though I was unable to whales’ ventral areas to confirm. The other whale had white pectoral fins.