So birds can fly
Tobi says: Bird's bones are hollow to help them fly,obviously to reduce weight when they fly. Human bones, on the other hand, are not hollow. We need strong bones to do the things we do, eg: walking, skipping, jumping etc...
The human's bones need to support larger amounts of weight and withstand pressure, twisting, and other forces. The bones of the bird need to be light-weight so that the bird can acheive flight.
they are lighter and more thin so they can fly
Human bones are thicker and denser; bird bones are thinner, hollow and mean less weight on the bird. In doing so, the birds whole body is lighter and therefore more of a advantage to fly.
Because it does not have beak,feathers,bones,ears,kidneys,lungs and so many other features.Having larvae in life cycle,two sets of wings,exoskeleton,compact eyes etc also make a dragonfly different from a bird
So that the bird is not too heavy to fly and to aid in the intake of oxygen as the bird breaths in flight.
Bones cant funcion properly unless they fit right around muscles and organs so if all of your organs are different sizes the bones need to be adjusted to fit that size or shape.
Bird's WingA bird wing is a ball of feathers, thin, hollow bones, and thin muscle's. The thin bones and muscle is so that the bird can fly through the air. The feathers are to help direct the bird though the winds. The birds wings act like arms. For us, if we moved our arms up and done at full extent it would be the same for the bird.the bird wings is made out of thin bones, thin muscles, and feathers. The thin bones and muscles are to help glide through the air. The feathers are to help guide the bird to where it needs to go.
Hollow light weight bones means less weight, which results in a bird using less energy to fly and making it easier for the bird to take off from the ground.
I would assume the cow's because a chicken's bones are hollow (bird's bones are hollow to reduce weight so they can fly).
This is true. Bird bones are hollow and so can splinter easily, creating a risk of internal injury.
None, because if u think about it dodo birds are birds so birds don't have teeth so dodo's don't either