It's got wings to propel it
They have wings that move and propel them
the flapping of the wings propel the bird forwards
it creates thrust
An aeroplane is a heavier than air machine with wings and an engine to propel it.
penguins have wings so they can propel themselves through the water
The wings of a penguin are actually called flippers. They use them to swim and propel themselves through water. Penguins can not fly.
A hawk's wings move in a vertical direction to propel itself off of the ground.
Penguins use their wings to help propel themselves through the water as they swim (think flippers). They also use their wings,along with their tails, to help them maintain their balance on land.
Penguins are too heavy for their short little wings to support them in the air. Under water, however, their flippers propel them quite well.
It is impossible for any bird to fly directly backwards. Unless the wings were put on backwards it wont work, as the wings are designed to propel forward.
Mosquitoes move in air by displacing air at very high frequency by rapid movement of the thin wings .They are able to turn the wings in angle to propel forward.
They don't exactly flap their wings like birds, but they propel themselves through the air sometimes by a propeller, but mostly with jet engines attached under the wings.