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 Humpback whale

Two Norwegian men fishing in Kaldfjorden on Kvaløya came within an arm´s length of a group of humpback whales surging to the surface of the sea. The fjords in Troms is full of herring now and the attract the humpback whales. Huge animals work together to chase herring.

The humpback whale is a species of baleen whale. One of the larger rorqual species, adults range in length from 12–16 metres and weigh approximately 36,000 kilograms. The humpback has a distinctive body shape, with unusually long pectoral fins and a knobbly head. An acrobatic animal known for breaching and slapping the water with its tail and pectorals, it is popular with whale watchers off the coasts of Australasia and the Americas. Males produce a complex song lasting 10 to 20 minutes, which they repeat for hours at a time. Its purpose is not clear, though it may have a role in mating.

Found in oceans and seas around the world, humpback whales typically migrate up to 25,000 kilometres (16,000 mi) each year. Humpbacks feed only in summer, in polar waters, and migrate to tropical or subtropical waters to breed and give birth in the winter. During the winter, humpbacks fast and live off their fat reserves. Their diet consists mostly of krill and small fish. Humpbacks have a diverse repertoire of feeding methods, including the bubble net feeding technique.


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