AVES

Definition Aves are vertebrates with a body covered with hair (epidermal origin), while the other animals there are hairy. Aves is a vertebrate that can fly, because it has wings which is a modification of the anterior limb. Aves wing elements derived from the middle and distal body. (on fossil Pterodactyla = reptilian and mammalian chiropetra = fly, wing elements derived from the distal body). Feet on aves used to walk, sit, or swim (with interdigital membranes). Characteristics aves meliptui skull skull bones fuse strong, berzat half horn. Aves no teeth. Big eyes. Oksipetal Kondil single. Example aves, birds, penguins