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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 vertebrate animals 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
  • Bird - Aves, Species, Orders | Britannica
    Bird - Aves, Species, Orders: In classifying birds, most systematists have historically relied upon structural characteristics to infer evolutionary relationships
  • AVES - Veterinarian in Austin, TX | Austin Veterinary Emergency . . .
    Our team of highly trained doctors and support staff combines their collective knowledge and skills in the treatment of companion animal medical conditions We provide 24-hour care using a team-based approach and serve as an extension of your family veterinarian
  • Welcome to Aves Rails - Your source for the most affordable DIY and 3D . . .
    Aves Rails provides Rails for your 3D printed firearms We Provide Rails for Glock, Smith and Wesson, among others Magazine Springs to Plastikov rails, We carry it
  • 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
  • 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 Archives - NatureWorks
    Birds are vertebrates, which means they have backbones They are the only animals with feathers Like mammals, birds are warm-blooded (endothermic), meaning they can maintain a constant body temperature and live in both warm and cold climates Most birds can fly, but some cannot
  • Aves - ejemplos, tipos de aves y su clasificación
    Las aves son animales vertebrados generalmente adaptados al vuelo, aunque muchos también pueden correr, saltar, nadar y bucear Algunos, como los pingüinos, han perdido la capacidad de volar, pero conservaron sus alas como vestigio
  • What Are Aves? Defining the Class of Birds - Biology Insights
    Aves, commonly known as birds, represent a distinct and diverse class of warm-blooded vertebrates They are characterized by unique features and thrive across nearly every environment on Earth Birds are defined by feathers, structures composed of keratin unique to this class
  • Birds of the World - Cornell Lab of Ornithology
    Comprehensive life histories for all bird species and families Unlock species accounts, maps, multimedia, and bird family overviews For public and academic libraries, government agencies, consulting firms, nature centers, nonprofits, and more





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