Flying ability of Archaeopteryx.
D000717:Anatomy, Comparative; D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D001717:Birds / Q000033:anatomy & histology* / Q000502:physiology; D001835:Body Weight; D010856:Columbidae / Q000033:anatomy & histology; D014921:Wings, Animal / Q000033:anatomy & histology