Gallus gallus, commonly known as the domestic chicken, is a bird species that belongs to the family Phasianidae. It is believed to have been domesticated from the wild red junglefowl in Southeast Asia over 8,000 years ago. Chickens are raised worldwide for their meat and eggs, making them one of the most common livestock animals. These birds are social creatures that live in flocks and exhibit a range of vocalizations and behaviors. Gallus gallus has a diverse array of breeds, each with unique characteristics, such as size, feather color, and egg production capabilities. They play a significant role in agriculture and culture across many societies.