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aves    
n. 鸟类

鸟类

Aves
n 1: (ornithology) the class of birds [synonym: {Aves}, {class
Aves}]

Aves \A"ves\, n. pl. [L., pl. of avis bird.] (Zool.)
The class of Vertebrata that includes the birds.
[1913 Webster]

Note: Aves, or birds, have a complete double circulation,
oviparous reproduction, front limbs peculiarly modified
as wings; and they bear feathers. All existing birds
have a horny beak, without teeth; but some Mesozoic
fossil birds (Odontornithes) had conical teeth inserted
in both jaws. The principal groups are: {Carinat[ae]},
including all existing flying birds; {Ratit[ae]},
including the ostrich and allies, the apteryx, and the
extinct moas; {Odontornithes}, or fossil birds with
teeth.
[1913 Webster]

Note: The ordinary birds are classified largely by the
structure of the beak and feet, which are in direct
relation to their habits. See {Beak}, {Bird},
{Odontonithes}.
[1913 Webster]


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  • Bird - Wikipedia
    Birds are a group of warm-blooded theropod dinosaurs constituting the class Aves, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton
  • Birds or Class Aves - Description and Characteristics
    Learn about birds or class Aves Discover what a bird is, its characteristics, and its relationship to mammals and dinosaurs
  • Aves - Definition and Examples - Biology Online Dictionary
    Aves is a class of warm-blooded vertebrates that includes birds They have wings modified from their forelimbs and developed flying muscles
  • Bird - Aves, Species, Orders | Britannica
    Bird - Aves, Species, Orders: In classifying birds, most systematists have historically relied upon structural characteristics to infer evolutionary relationships
  • Class Aves - Classification, Examples, its Characteristics
    The aves class contains around 9000 species that show courtship, parental care, nest building, and most importantly territorial behavior Aves are the first vertebrates who have warm blood in their body
  • Introduction to the Aves
    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
  • Introduction to Aves (Birds) - Zoologyverse | 2025
    Birds, scientifically classified under the class Aves, are warm-blooded vertebrates characterized by feathers, beaks, and laying hard-shelled eggs They are found in almost every ecosystem, from dense rainforests to arid deserts, showcasing incredible diversity in size, color, and behavior
  • Aves – Definition, Characteristics, Classification - Biology Notes Online
    Aves, the taxonomic class of birds, is a fascinating group of animals within the animal kingdom With approximately 9,000 species, birds display a diverse range of characteristics and behaviors that make them unique and captivating One of the defining features of Aves is their ability to fly
  • Bird - Aves, Species, and Orders: Exploring Avian Diversity
    In this article, we will explore avian diversification, the historical perspectives that shaped bird classification, and the significant advances achieved in understanding their evolutionary relationships through tools such as DNA analysis
  • Aves: Characteristics and Classification - The Science Notes
    Aves, the scientific classification for birds, represents warm-blooded vertebrates with feathers, beaked jaws, the ability to lay hard-shelled eggs, and possessing a lightweight skeleton suitable for flight





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