true
Gravity
Birds have hollow bones, making them lighter. Also, the wing is the shape of an airfoil. And the bird must get enough lift and thrust to overcome gravity and drag. These are the four forces that act on any flying thing.
no they do not have hollow bones. this is because they are flightless and god just made them that way♥ ♥
Birds are the only creatures that are warm blooded and have wings. Not all birds, however, have hollow bones - most flightless birds do not have hollow bones.
birds have hollow bones to help them fly
Coral, jellyfish, and aneomes are hollow bodied animals
their bones are hollow to make them lighter, and more legible for flight. if they had solid bones they wouldn't be able to fly as fast, high or as maneuverable as they are now. Hope this helped! (:
Birds have hollow bones to help them fly.
Birds bones are hollow. That is why they can fly, because they are so light because of their hollow bones. x)
Birds.
Yes as birds with hollow bones cannot fly for longer whereas penguins do not have hollow bones and are able to swim in rough tides for ages. Also non-hollow bones are stronger and tougher than hollow bones.
Birds have hollow bones, making them lighter. Also, the wing is the shape of an airfoil. And the bird must get enough lift and thrust to overcome gravity and drag. These are the four forces that act on any flying thing.