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If the question refers to chicken eggs specifically, the answer is still the egg, but the explanation is more complicated. [ 8] The process by which the chicken arose through the interbreeding and domestication of multiple species of wild jungle fowl is poorly understood, and the point at which this evolving organism became a chicken is a ...
Ornithology is a branch of zoology that concerns the study of birds. [ 1] Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. [ 2] It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support.
An eastern towhee ( Pipilo erythrophthalmus) singing, Jamaica Bay Wildlife Refuge, United States. Blackbird song. Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs are the bird sounds that are melodious to the human ear. In ornithology and birding, songs (relatively complex vocalizations) are ...
Poultry of the world ( c. 1868) Poultry ( / ˈpoʊltri /) are domesticated birds kept by humans for the purpose of harvesting animal products such as meat, eggs or feathers. [ 1] The practice of raising poultry is known as poultry farming. These birds are most typically members of the superorder Galloanserae ( fowl ), especially the order ...
The anatomy of bird's respiratory system, showing the relationships of the trachea, primary and intra-pulmonary bronchi, the dorso- and ventro-bronchi, with the parabronchi running between the two. The posterior and anterior air sacs are also indicated, but not to scale. Inhalation–exhalation cycle in birds.
The United States women's basketball team nearly watched its Olympic dominance end, but the Americans pulled out a 67-66 victory in the gold medal game against France.. A'ja Wilson had 21 points ...
Chickens are common and widespread domestic animals, with a total population of 23.7 billion as of 2018, and an annual production of more than 50 billion birds. A hen bred for laying can produce over 300 eggs per year. There are numerous cultural references to chickens in folklore, religion, and literature.
Wilson's Storm Petrel with distinctive yellow webbing between feet. Wilson's storm petrel is a small bird, 16–18.5 cm (6.3–7.3 in) in length with a 38–42 cm (15–16.5 in) wingspan. It is slightly larger than the European storm petrel and is essentially dark brown in all plumages, except for the white rump and flanks.