The Atlantic Humpback Whale generally has a white flipper with some small black markings, while the Pacific Humpback’s pectorals are usually black on the upper side and white below. The broad tail fins have a dark upper side and white patches underneath with a distinctive central notch and very knobbly trailing edges. Adult Humpback Whales reach an average length of 11.5 to 15 metres and weigh between 25 and 30 tonnes.
As mentioned, the Humpback Whale is active and playful. It is often seen at the water’s surface, sometimes floating on its back with one or both pectoral flippers in the air. It is a slow swimmer, and is curious enough to approach boats, sometimes to its own detriment.
The Humpback Whale will blow four to eight times at approximately 20-second intervals. Thereafter, it will dive below the surface of the water, where it will stay for between three and nine minutes at a time.
Although Humpback Whales often travel alone, they may also live in groups of between three and 15 individuals.
Males can be aggressive with one another, which is evident from the scarring on their bodies.
Where to Find Them
Humpback Whales have a wide distribution, and are found in all of the world’s oceans, whether ice-packed or tropical. This whale species spends winter in the high-latitude feeding grounds, where the water is cold. In summer, it migrates to low-latitudes, where it breeds in the warmer waters of the tropics.
Humpback Whales are baleen whales, with between 270 and 400 baleen plates on either side of their mouths. This means that they feed on the food that gets caught in these sieve-like plates, which includes krill and small fish. Due to their large size, the Humpbacks have to consume plenty of food in order to survive.
Because he Humpback Whale is found so extensively around the world, its threats are increased. They often succumb to fishing nets, in which they become tangled and drown. They are also victims of pollution and whaling.