- has feather that aid flight
- hollow bone to reduce weight
- bones are fused to reduce flexibility
- lightweight, smooth feathers – this reduces the forces of weight and drag
- a beak, instead of heavy, bony jaws and teeth – this reduces the force of weight
- an enlarged breastbone called a sternum for flight muscle attachment – this helps with the force of thrust
- a streamlined body – this helps reduce the force of drag
- wings – these enable the force of lift.
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Dr. Bbosa Science