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Class Aves
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Birds are vertebrates with feathers, modified for flight and for active metabolism. Birds are a monophyletic lineage, evolved once from a… More »
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The vertebrate class Aves includes the birds, an extremely distinctive and successful clade, with an estimated 9000 species worldwide, including the snowy owl pictured here. Although descended from the dinosaurs, birds have evolved remarkable specializations for flight: a unique "one-way" breathing system,
www.ucmp.berkeley.edu/diapsids/birds/birdintro.html www.ucmp.berkeley.edu/diapsids/birds/birdintro.html · Cached
ITIS (Integrated Taxonomic Information System) contains a wealth of information on taxonomy and nomenclature. Visit ITIS to find out more about the taxonomy of Aves.
www.ucmp.berkeley.edu/diapsids/birds/birdsy.html www.ucmp.berkeley.edu/diapsids/birds/birdsy.html · Cached
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Bird - Wikipedia, the free encyclopedia
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Birds (class Aves ) are winged, bipedal, endothermic (warm-blooded), vertebrate animals that lay eggs. There are around 10,000 living species, making them the most numerous tetrapod vertebrates. Th...
en.wikipedia.org/wiki/Bird
Isla Aves - Wikipedia, the free encyclopedia
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Isla de Aves (Spanish for "Island of Birds"), or Aves Island , is a Caribbean islet claimed by Venezuela. It has been the subject of numerous territorial disputes between the neigboring independent...
en.wikipedia.org/wiki/Isla_Aves
Diapsida (birds, crocodiles, lizards, snakes, and relatives) ... Class Aves (birds) ... Home Kingdom Animalia Phylum Chordata Subphylum Vertebrata Class Aves...
animaldiversity.ummz.umich.edu/site/accounts/classifica... animaldiversity.ummz.umich.edu/site/accounts/classification/Aves.html · Cached
Birds (Class Aves) are warm-blooded (endothermic) vertebrates. Birds have feathers covering their skin and their forelimbs are modified into wings. ... Birds - Class Aves...
animals.about.com/od/birds/p/aves.htm animals.about.com/od/birds/p/aves.htm
Birds are members of the Class Aves. ... The major characteristics of this class concern adaptations for flight, including appendages modified as wings, feathers, endothermy, a high metabolic rate, a vertebral column modified for flight, and bones that are lightened by numerous air spaces.
www.snow.edu/allans/biology1320/aves.html www.snow.edu/allans/biology1320/aves.html · Cached