Humpback whale
A humpback whale (Megaptera novaeangliae) is a large baleen whale with long flippers and a knobbly head. They can be found in every ocean.[2]
| Megaptera Megaptera novaeangliae[1] | |
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| Size compared to an average human | |
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Scientific classification 
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| Unrecognized taxon (fix): | Balaenopteridae |
| Genus: | Megaptera Gray, 1846 |
| Species: | M. novaeangliae
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| Binomial name | |
| Megaptera novaeangliae Borowski, 1781
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| Humpback whale range | |
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They can grow to 15–16 m (49–52 ft) long and weigh up to 40 metric tons.
Life history
Humpback whales can live up to 45 years. [3] They migrate between the places they feed in the winter and the places they give birth in the summer. They usually live alone.
Feeding
Humpback whales eat krill and small fish, for example herring, capelin, and sand lance. They scoop up their food in their large mouths. Sometimes they round up their prey by swimming in tight circles and blowing curtains of bubbles around them. They often hunt in small groups, called pods.
Whale song
The male whale is known to sing for up to 22 hours at a time. Because whales do not have vocal cords, they make songs by forcing air through their nasal passages. Every male has a different song. We don't yet know why they sing, it might be to call a female or scare away other males. The songs are made up of a pattern of low notes repeated over a period of hours or days. The whales slowly change their songs over a period of years.[4]
Other sounds
Both the male and female humpback whales make other sounds, such as moans and grunts, to communicate with each other.
Humpback Whale Media
Antarctic minke whale illustration
Blauwal (Balaenoptera musculus)
Balaenoptera borealis
Gray whale (Eschrichtius robustus)
Rorcual común (Balaenoptera physalus), también llamado ballena de aleta,
Humpback whale illustration
Young whale with blowholes visible
Humpbacks frequently breach, throwing two-thirds or more of their bodies out of the water and splashing down on their backs.
A kayaker only a few feet away from a spyhopping humpback whale in Monterey Bay National Marine Sanctuary. Photo credit: Douglas Croft
A group of 15 whales bubble net fishing near Juneau, Alaska
Spectrogram of humpback whale vocalizations: detail is shown for the first 24 seconds of the 37-second recording "Singing Humpbacks".
Singing humpbacks Recording of humpback whales singing. Problems listening to this file? See media help. Aerial view of three humpback whales (Megaptera novaeangliae) near Cape Solander, New South Wales, Australia.
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References
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Wikispecies has information on: Megaptera novaeangliae. |
- ↑ Mead, J.G.; Brownell, R. L. Jr. (2005). "Order Cetacea". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0-8018-8221-0. OCLC 62265494.
- ↑ Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N. (2008). "Megaptera novaeangliae". IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature. Retrieved 18 January 2013.
- ↑ Chapham, Phillip J.; Mead, James G. (1999). "Megaptera novaeangliae". Mammalian Species 604: 1–9.
- ↑ Thomas Ling (June 22, 2021). "How humpback whales communicate through a hidden global network of song". BBC Science Focus Magazine. https://www.sciencefocus.com/nature/whale-song/. Retrieved July 7, 2021.