<P> The humpback whale ( Megaptera novaeangliae ) is a species of baleen whale . One of the larger rorqual species , adults range in length from 12 -- 16 m ( 39 -- 52 ft ) and weigh about 36,000 kg ( 79,000 lb ) . The humpback has a distinctive body shape , with long pectoral fins and a knobbly head . It is known for breaching and other distinctive surface behaviors , making it popular with whale watchers . 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 . </P>
<P> The humpback whale ( Megaptera novaeangliae ) is a species of baleen whale . One of the larger rorqual species , adults range in length from 12 -- 16 m ( 39 -- 52 ft ) and weigh about 36,000 kg ( 79,000 lb ) . The humpback has a distinctive body shape , with long pectoral fins and a knobbly head . It is known for breaching and other distinctive surface behaviors , making it popular with whale watchers . 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 . </P>
what is the average weight of a humpback whale
what is the average weight of a humpback whale
about 36,000 kg ( 79,000 lb )
about 36,000 kg ( 79,000 lb )