安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Bird - Wikipedia
Birds are a group of warm-blooded vertebrates 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
- List of birds - Wikipedia
This article lists living orders and families of birds In total there are about 11,000 species of birds described as of 2024, [1] though one estimate of the real number places it at almost 20,000 [2] The order passerines (perching birds) alone accounts for well over 5,000 species
- Bird - Simple English Wikipedia, the free encyclopedia
Birds (Aves) are a group of animals with backbones They evolved from dinosaurs Technically, birds are dinosaurs [2] The word for "bird-like" is avian Birds are warm blooded Their feathers help prevent loss of body heat [3] [4] Modern birds do not have teeth They have beaked jaws Birds lay hard-shelled eggs
- List of birds by common name - Wikipedia
In this list of birds by common name 11,250 extant and recently extinct (since 1500) bird species are recognised [1] Species marked with a "†" are extinct
- Bird | Description, Species, Feathers, Facts | Britannica
Bird, any of the more than 10,400 living species unique in having feathers, the major characteristic that distinguishes them from other animals They are warm-blooded vertebrates more related to reptiles than mammals
- Bird anatomy - Wikipedia
Bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight Birds have a light skeletal system and light but powerful musculature which, along with circulatory and respiratory systems capable of very high metabolic rates and oxygen supply, permit the bird to fly
- Guide to North American Birds | Audubon
Explore more than 800 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive
- List of bird species described in the 2020s - Wikipedia
See also parent article Bird species new to science This list shall only include newly recognized species and subspecies of birds (living as well as extinct) whose formal description was first published during the period from 1 Jan 2020 to 31 Dec 2029 By default, the table was sorted by the "publ-date" and alphabetically by the scientific name
|
|
|