name = BalaenidaeMSW3 Cetacea|id=14300003]
North Atlantic Right Whale
phylum = Chordata
familia = Balaenidae
familia_authority = Gray, 1821
subdivision_ranks = Genera
subdivision = "
range_map_caption = Range of the Balaenidae species
Balaenidae is a family of mysticete
whales that contains two living genera. Commonly called the right whales as it contains mainly right whalespecies. This name can be confusing, however, since one of the species is the Bowhead Whale, which is different from the right whales.
Balaenids are large whales, with an average adult length of 15 to 17 metres (45-50 feet), and weighing 50-80 tonnes. Their principle distinguishing feature is their narrow, arched, upper jaw, which gives the animals a deeply curved jawline. This shape allows for especially long
baleenplates. The animals utilise these by floating at or near the surface, and straining food from the water, which they then scrape off the baleen with their tongues - a feeding method that contrasts with those of the rorquals and the Gray Whale. Their diet consists of small crustaceans, primarily copepods, although some species also eat a significant amount of krill.cite book |editor=Macdonald, D.|author= Gaskin, David E.|year=1984 |title= The Encyclopedia of Mammals|publisher= Facts on File|location=New York|pages= 230-235|isbn= 0-87196-871-1]
Balaenids are also robustly built by comparison with the rorquals, and lack the grooves along the throat that are distinctive of those animals. They have exceptionally large heads in comparison with their bodies, reaching 40% of the total length in the case of the Bowhead Whale. They have short, broad, flippers, and lack a dorsal fin.
All species are at least somewhat migratory, moving into warmer waters during the winter, during which they both mate and give birth.
Gestationlasts 10-11 months, results in the birth of a single young, and typically occurs once every three years.
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Look at other dictionaries:
Balaenidae — Saltar a navegación, búsqueda ? Balaenidae Ballena franca glacial … Wikipedia Español
Balaenidae — n. a family comprising the right whales. Syn: family Balaenidae. [WordNet 1.5] || … The Collaborative International Dictionary of English
Balaenidae — (Glattwale), Familie der Bartenwale (s. Wale) … Meyers Großes Konversations-Lexikon
Balaenidae — [von lateinisch balaena »Wal«], die Glattwale … Universal-Lexikon
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Balaenidae — tikrieji banginiai statusas T sritis zoologija | vardynas taksono rangas šeima apibrėžtis Šeimoje 3 gentys. Kūno ilgis – 6 21 m. atitikmenys: lot. Balaenidae angl. bow headed whales; right whales vok. Glattwale rus. гладкие киты; настоящие киты… … Žinduolių pavadinimų žodynas
Balaenidae — noun right whales • Syn: ↑family Balaenidae • Hypernyms: ↑mammal family • Member Holonyms: ↑Mysticeti, ↑suborder Mysticeti • Member Meronyms: ↑ … Useful english dictionary
Balaenidae — … Википедия
balaenidae — ba·lae·ni·dae … English syllables