flightless
Related Words
birdwingpenguinostrichemukiwicassowaryratiteevolutionadaptationvestigialplumagebeakfeatherterrestrialgroundrunningstridelegclawavianornithologyspeciesgenustaxonomybiologyzoologyhabitatislandecosystemsurvivalpredatorpreymigrationnestingegghatchlingflightsoarglidewingbeataerodynamicsliftdraggravityanatomymorphologyskeletalsternumkeelmuscleatrophydivergencenatural selectionextinctionendemicwildlifefaunanatureenvironmentbiomesavannatundraantarcticaaustralianew zealand