Chicken | |
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Male (left) and female chickens | |
Domesticated
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Galliformes |
Family: | Phasianidae |
Genus: | Gallus |
Species: | G. g. domesticus
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Binomial name | |
Gallus gallus domesticus | |
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Chicken distribution | |
Synonyms | |
Gallus domesticus L. |
The chicken (Gallus domesticus) is a large and round short-winged bird, domesticated from the red junglefowl of Southeast Asia around 8,000 years ago. Most chickens are raised for food, providing meat and eggs; others are kept as pets or for cockfighting.
Chickens are common and widespread domestic animals, with a total population of 23.7 billion as of 2018[update], 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.