Feather

Feathers are epidermal growths that form the distinctive outer covering, or plumage, on coelurosaurian dinosaurs. They are considered the most complex integumentary structures found in vertebrates, and indeed a premier example of a complex evolutionary novelty. They are among the characteristics that distinguish the extant Aves from other living groups.

Feather

Feathers are epidermal growths that form the distinctive outer covering, or plumage, on coelurosaurian dinosaurs. They are considered the most complex integumentary structures found in vertebrates, and indeed a premier example of a complex evolutionary novelty. They are among the characteristics that distinguish the extant Aves from other living groups.