(distal), for the attachment of feathers. Thewingbones are hollow, and the cavity in the humerus is connected with the air-sac system. As a general rule, large flying birds have proportionally greater pneumaticity in the skeleton than small ones. The highlypneumaticbones of large flying birds...
Hinchliffe JR, Hecht MK (1984) Homology of the bird wing skeleton. Embryological versus paleontological evidence. In: Hecht MK, Wallace B, Prance GH (eds) Evolutionary biology. Plenum Press, New York, pp 21–39Hinchliffe JR, Hecht M. 1984. Homology of the bird wing skeleton. Evol Biol ...
both of which are mammals, there are significant differences between their skeletal make-up. If however, you do the same thing with theskeletonof a chicken and a parrot, you won’t find those differences.
discovered that when a bird moves its skeleton to alter the shape of the wing plane, the flight feathers on the wings are redistributed as a way to be robust to turbulence [33]. Designing a hinged wing by using the shoulder joint as a hinged suspension system can be applied to small-...