Research provides molecular insights into sexual dimorphism of chicken feathers

Birds possess unique skin appendages called feathers that are derived from the outermost layer of skin cells. Feathers are important for several functions, such as flight, temperature regulation, protection from external stimuli, and mating behavior. The gender-specific development of feathers in birds and the vibrant feather patterns that distinguish males from females, also known as sexual dimorphism, have piqued the interests of the global research community.