We cannot fly because we as human beings do not have the ability to fly.
Also because we don't have wings.we also are not areodynamic.
and if we were ment to fly we would have wings or other powers.
penguins cant fly, and chickens cant propperly fly!
fruits cant fly...........
no he cant fly he is to heavy
you cant fly it is not posibble
you cant fly it is not posibble
till it cant fly
Penguins cant fly.
batman cant fly he glides using his cape so no he cant
He cant fly because his balance would be bad, they cant fly
you cant...... -_-
no you cant fly unless your have bird or something
Airplanes fly because they cant swim.