... of the flightless ratites in which the neopulmo is relatively poorly developed and a segmentum accelerans may be generally lacking. The large size of the bronchial system of the ostrich may help explain the unique shifts in the airflow pathways that must occur from resting to panting breathing, explaining its...

... emu flightless bird histochemistry muscle physiology ratite Dromaius novaehollandiae . Flying is the dominant form of locomotion for most birds, and the pectoralis and supracoracoideus, which power flight, display specializations associated with different flying behaviours ( George...