Ornithere: Difference between revisions

Flight-capable species have large keels derived from the front protrusion of their cephalopelvis, which supports their massive wing muscles. Their hips are also more flexible, as necessitated by the use of their legs as wings, though this comes at the cost that the protrusion which supports the pillar-erect posture of other species is tilted upwards, therefore requiring them to use more energy to stand upright.

===Mouth Anatomy and Feeding===