Page 106 - The Origin of Birds and Flight

104 The Origin of Birds and Flight

vitally important, 6 because minor variations will impair the system in general.
Special muscles in the skin let the bird move its feathers in a detailed, con-
trolled manner. This system helps the bird fly and also protects it. Birds puff
up their feathers to discourage their enemies by appearing larger, to keep
themselves warmer, or to attract the interest of other birds during the mating
season. 7
Another condition for flight is that the feathers in the wing and tail must be
laid out exactly as required—which presents another problem for evolutionists.
Feathers, whose origins evolutionists are unable to account for in any case,
must also be arranged in an appropriate manner to make flight possible at all.

(1) (1) The air passing quickly around the bird’s
Lift force
wings generates a lifting force.
(2) The bird bends its wings to obtain greater
lift. Air flowing over the wing is thus accelerated.
(3) If the wing is bent perpendicular, the air is
(2) unable to flow easily towards the upper surfaces
of the wing, and the bird loses speed and stalls.
Birds use the principles of aerodynamic for-
ces in flying. These techniques and actions are
inspired in them by Allah.
(3)

Lift force

Low pressure
The tops of birds’ wings are curved,
the bottoms flat. In flight, this shape
leads to lower air pressure on the
top surface than on the bottom. This
difference in air pressure creates lift,
which enables the bird to rise as its High pressure
wings push forward through the air.