

-
-
-
-
- Humpback whales are an endangered species: globally, their population has dwindled to about 30-40,000, from an estimated peak of 750,000 to 2 million animals.
- Location:Oahu, Hawaii Credit:Tony Harrington
The humpback whale is a baleen whale and a rorqual whale that sings amazing songs. It performs complex and cooperative feeding techniques. The name humpback describes the motion it makes as it arches its back out of the water in preparation for a dive.
Humpback whales grow to be about 52 feet (16 m) long, weighing 30-50 tons (27-45 tonnes). The females are slightly larger than males, as with all baleen whales. The four-chambered heart of the average humpback whale weighs about 430 pounds (195 kg) – about as much as three average adult human beings. Humpback whales are the noisiest and most imaginative whales when it comes to songs. They have long, varied, complex, eerie, and beautiful songs that include recognizable sequences of squeaks, grunts, and other sounds. The songs have the largest range of frequencies used by whales, ranging from 20-9,000 Hertz. Only males have been recorded singing. They sing the complex songs only in warm waters, perhaps used for mating purposes. In cold waters, they make rougher sounds, scrapes and groans, perhaps used for locating large masses of krill (the tiny crustaceans that they eat). ( Info from enchantedlearning.com)
Please comment or share your thoughts on these magnificent animals