Chickens

Chickens (Gallus gallus domesticus) are a domesticated species of bird, originally descended from the wild red junglefowl. Chickens are kept globally as a source of food and eggs. They have been selectively bred over time to meet the desired traits of humans, such as increased egg production and larger physique. Additionally, chickens have been used in studies of genetics and development, to determine the impact of domestication on the species and to further scientific knowledge on avian biology and evolution. Chickens are also valued for their cultural and religious significance in many countries, as well as being kept as pets in some contexts.